172115704 has 16 divisors (see below), whose sum is σ = 330588720. Its totient is φ = 83958720.

The previous prime is 172115681. The next prime is 172115707. The reversal of 172115704 is 407511271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172115707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262044 + ... + 262699.

It is an arithmetic number, because the mean of its divisors is an integer number (20661795).

Almost surely, 2^172115704 is an apocalyptic number.

It is an amenable number.

172115704 is a deficient number, since it is larger than the sum of its proper divisors (158473016).

172115704 is a wasteful number, since it uses less digits than its factorization.

172115704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524790 (or 524786 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 172115704 is about 13119.2874806523. The cubic root of 172115704 is about 556.2544511027.

Adding to 172115704 its reverse (407511271), we get a palindrome (579626975).

The spelling of 172115704 in words is "one hundred seventy-two million, one hundred fifteen thousand, seven hundred four".