172869323 has 4 divisors (see below), whose sum is σ = 188584728. Its totient is φ = 157153920.

The previous prime is 172869289. The next prime is 172869341. The reversal of 172869323 is 323968271.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 172869323 - 2⁶ = 172869259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172869373) 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, 7857686 + ... + 7857707.

It is an arithmetic number, because the mean of its divisors is an integer number (47146182).

Almost surely, 2^172869323 is an apocalyptic number.

172869323 is a deficient number, since it is larger than the sum of its proper divisors (15715405).

172869323 is a wasteful number, since it uses less digits than its factorization.

172869323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715404.

The product of its digits is 108864, while the sum is 41.

The square root of 172869323 is about 13147.9779053663. The cubic root of 172869323 is about 557.0651336085.

The spelling of 172869323 in words is "one hundred seventy-two million, eight hundred sixty-nine thousand, three hundred twenty-three".