870415278 has 16 divisors (see below), whose sum is σ = 1777870080. Its totient is φ = 283965176.

The previous prime is 870415277. The next prime is 870415279. The reversal of 870415278 is 872514078.

It is an interprime number because it is at equal distance from previous prime (870415277) and next prime (870415279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870415277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543008 + ... + 1543571.

It is an arithmetic number, because the mean of its divisors is an integer number (111116880).

Almost surely, 2^870415278 is an apocalyptic number.

870415278 is an abundant number, since it is smaller than the sum of its proper divisors (907454802).

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

870415278 is a wasteful number, since it uses less digits than its factorization.

870415278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086631.

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

The square root of 870415278 is about 29502.8011890397. The cubic root of 870415278 is about 954.7921399173.

The spelling of 870415278 in words is "eight hundred seventy million, four hundred fifteen thousand, two hundred seventy-eight".