172936497 has 16 divisors (see below), whose sum is σ = 236744640. Its totient is φ = 112228032.

The previous prime is 172936487. The next prime is 172936513. The reversal of 172936497 is 794639271.

It is a happy number.

172936497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172936497 - 2⁴ = 172936481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172936417) 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, 38779 + ... + 43007.

It is an arithmetic number, because the mean of its divisors is an integer number (14796540).

Almost surely, 2^172936497 is an apocalyptic number.

It is an amenable number.

172936497 is a deficient number, since it is larger than the sum of its proper divisors (63808143).

172936497 is a wasteful number, since it uses less digits than its factorization.

172936497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592.

The product of its digits is 571536, while the sum is 48.

The square root of 172936497 is about 13150.5321945540. The cubic root of 172936497 is about 557.1372795253.

It can be divided in two parts, 1729 and 36497, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 172936497 in words is "one hundred seventy-two million, nine hundred thirty-six thousand, four hundred ninety-seven".