870572087 has 16 divisors (see below), whose sum is σ = 1086346752. Its totient is φ = 677769120.

The previous prime is 870572063. The next prime is 870572099. The reversal of 870572087 is 780275078.

It is not a de Polignac number, because 870572087 - 2⁸ = 870571831 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870572387) 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 15 ways as a sum of consecutive naturals, for example, 95993 + ... + 104669.

It is an arithmetic number, because the mean of its divisors is an integer number (67896672).

Almost surely, 2^870572087 is an apocalyptic number.

870572087 is a deficient number, since it is larger than the sum of its proper divisors (215774665).

870572087 is a wasteful number, since it uses less digits than its factorization.

870572087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9998.

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 870572087 is about 29505.4585966733. The cubic root of 870572087 is about 954.8494730909.

The spelling of 870572087 in words is "eight hundred seventy million, five hundred seventy-two thousand, eighty-seven".