872415234 has 24 divisors (see below), whose sum is σ = 1895512320. Its totient is φ = 289992888.

The previous prime is 872415211. The next prime is 872415239. The reversal of 872415234 is 432514278.

It is a happy number.

872415234 is a `hidden beast` number, since 8 + 7 + 2 + 415 + 234 = 666.

It is a super-2 number, since 2×872415234² = 1522216681030549512, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (872415239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61042 + ... + 73965.

It is an arithmetic number, because the mean of its divisors is an integer number (78979680).

Almost surely, 2^872415234 is an apocalyptic number.

872415234 is an abundant number, since it is smaller than the sum of its proper divisors (1023097086).

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

872415234 is a wasteful number, since it uses less digits than its factorization.

872415234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135374 (or 135371 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 872415234 is about 29536.6760824572. The cubic root of 872415234 is about 955.5228568754.

The spelling of 872415234 in words is "eight hundred seventy-two million, four hundred fifteen thousand, two hundred thirty-four".