172160976 has 120 divisors (see below), whose sum is σ = 507393120. Its totient is φ = 50139648.

The previous prime is 172160969. The next prime is 172160981. The reversal of 172160976 is 679061271.

172160976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153570 + ... + 154686.

It is an arithmetic number, because the mean of its divisors is an integer number (4228276).

Almost surely, 2^172160976 is an apocalyptic number.

172160976 is a gapful number since it is divisible by the number (16) 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 172160976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253696560).

172160976 is an abundant number, since it is smaller than the sum of its proper divisors (335232144).

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

172160976 is a wasteful number, since it uses less digits than its factorization.

172160976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 172160976 is about 13121.0127657891. The cubic root of 172160976 is about 556.3032178011.

The spelling of 172160976 in words is "one hundred seventy-two million, one hundred sixty thousand, nine hundred seventy-six".