172874392 has 32 divisors (see below), whose sum is σ = 330220800. Its totient is φ = 84829984.

The previous prime is 172874381. The next prime is 172874399. The reversal of 172874392 is 293478271.

172874392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172874399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110109 + ... + 111667.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^172874392 is an apocalyptic number.

It is an amenable number.

172874392 is a deficient number, since it is larger than the sum of its proper divisors (157346408).

172874392 is a wasteful number, since it uses less digits than its factorization.

172874392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1811 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 172874392 is about 13148.1706712379. The cubic root of 172874392 is about 557.0705784449.

The spelling of 172874392 in words is "one hundred seventy-two million, eight hundred seventy-four thousand, three hundred ninety-two".