870026087 has 4 divisors (see below), whose sum is σ = 994315536. Its totient is φ = 745736640.

The previous prime is 870026057. The next prime is 870026123. The reversal of 870026087 is 780620078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 870026087 - 2⁶ = 870026023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 870026087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870026057) 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 3 ways as a sum of consecutive naturals, for example, 62144714 + ... + 62144727.

It is an arithmetic number, because the mean of its divisors is an integer number (248578884).

Almost surely, 2^870026087 is an apocalyptic number.

870026087 is a deficient number, since it is larger than the sum of its proper divisors (124289449).

870026087 is a wasteful number, since it uses less digits than its factorization.

870026087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124289448.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 870026087 is about 29496.2046202558. The cubic root of 870026087 is about 954.6498124884.

The spelling of 870026087 in words is "eight hundred seventy million, twenty-six thousand, eighty-seven".