172792169 has 16 divisors (see below), whose sum is σ = 198042624. Its totient is φ = 149226000.

The previous prime is 172792153. The next prime is 172792177. The reversal of 172792169 is 961297271.

It is not a de Polignac number, because 172792169 - 2⁴ = 172792153 is a prime.

It is a super-2 number, since 2×172792169² = 59714267335449122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172794169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35942 + ... + 40464.

It is an arithmetic number, because the mean of its divisors is an integer number (12377664).

Almost surely, 2^172792169 is an apocalyptic number.

It is an amenable number.

172792169 is a deficient number, since it is larger than the sum of its proper divisors (25250455).

172792169 is a wasteful number, since it uses less digits than its factorization.

172792169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708.

The product of its digits is 95256, while the sum is 44.

The square root of 172792169 is about 13145.0435145723. The cubic root of 172792169 is about 556.9822459522.

The spelling of 172792169 in words is "one hundred seventy-two million, seven hundred ninety-two thousand, one hundred sixty-nine".