172549968 has 80 divisors (see below), whose sum is σ = 467922432. Its totient is φ = 54720000.

The previous prime is 172549967. The next prime is 172549987. The reversal of 172549968 is 869945271.

It is a self number, because there is not a number n which added to its sum of digits gives 172549968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172549967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89818 + ... + 91718.

Almost surely, 2^172549968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172549968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233961216).

172549968 is an abundant number, since it is smaller than the sum of its proper divisors (295372464).

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

172549968 is a wasteful number, since it uses less digits than its factorization.

172549968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 1998 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 172549968 is about 13135.8276480776. The cubic root of 172549968 is about 556.7218855108.

The spelling of 172549968 in words is "one hundred seventy-two million, five hundred forty-nine thousand, nine hundred sixty-eight".