72172962 has 24 divisors (see below), whose sum is σ = 159327324. Its totient is φ = 23603424.

The previous prime is 72172951. The next prime is 72172999. The reversal of 72172962 is 26927127.

It can be written as a sum of positive squares in 2 ways, for example, as 70711281 + 1461681 = 8409^2 + 1209^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36873 + ... + 38780.

Almost surely, 2^72172962 is an apocalyptic number.

72172962 is an abundant number, since it is smaller than the sum of its proper divisors (87154362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72172962 is a wasteful number, since it uses less digits than its factorization.

72172962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75714 (or 75711 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 72172962 is about 8495.4671443070. The cubic root of 72172962 is about 416.3496236399.

The spelling of 72172962 in words is "seventy-two million, one hundred seventy-two thousand, nine hundred sixty-two".