870415872 has 40 divisors (see below), whose sum is σ = 2318846376. Its totient is φ = 290138112.

The previous prime is 870415867. The next prime is 870415877. The reversal of 870415872 is 278514078.

It is an interprime number because it is at equal distance from previous prime (870415867) and next prime (870415877).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870415877) 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, 281803 + ... + 284874.

Almost surely, 2^870415872 is an apocalyptic number.

It is an amenable number.

870415872 is an abundant number, since it is smaller than the sum of its proper divisors (1448430504).

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

870415872 is an equidigital number, since it uses as much as digits as its factorization.

870415872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566698 (or 566682 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 870415872 is about 29502.8112558787. The cubic root of 870415872 is about 954.7923571111.

The spelling of 870415872 in words is "eight hundred seventy million, four hundred fifteen thousand, eight hundred seventy-two".