172616472 has 96 divisors (see below), whose sum is σ = 557556480. Its totient is φ = 47171520.

The previous prime is 172616471. The next prime is 172616489. The reversal of 172616472 is 274616271.

172616472 is a `hidden beast` number, since 1 + 7 + 2 + 6 + 1 + 647 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172616471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4147 + ... + 19037.

It is an arithmetic number, because the mean of its divisors is an integer number (5807880).

Almost surely, 2^172616472 is an apocalyptic number.

172616472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172616472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278778240).

172616472 is an abundant number, since it is smaller than the sum of its proper divisors (384940008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172616472 is a wasteful number, since it uses less digits than its factorization.

172616472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14933 (or 14926 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 172616472 is about 13138.3588016160. The cubic root of 172616472 is about 556.7934000159.

The spelling of 172616472 in words is "one hundred seventy-two million, six hundred sixteen thousand, four hundred seventy-two".