872257156 has 9 divisors (see below), whose sum is σ = 1526553399. Its totient is φ = 436099044.

The previous prime is 872257151. The next prime is 872257159. The reversal of 872257156 is 651752278.

The square root of 872257156 is 29534.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872257151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 51685 + ... + 66451.

Almost surely, 2^872257156 is an apocalyptic number.

872257156 is the 29534-th square number.

It is an amenable number.

872257156 is a deficient number, since it is larger than the sum of its proper divisors (654296243).

872257156 is an frugal number, since it uses more digits than its factorization.

872257156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29538 (or 14769 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The cubic root of 872257156 is about 955.4651411378.

The spelling of 872257156 in words is "eight hundred seventy-two million, two hundred fifty-seven thousand, one hundred fifty-six".