870425587 has 8 divisors (see below), whose sum is σ = 917876160. Its totient is φ = 823138920.

The previous prime is 870425579. The next prime is 870425599. The reversal of 870425587 is 785524078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 870425587 - 2³ = 870425579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870425887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29989 + ... + 51382.

It is an arithmetic number, because the mean of its divisors is an integer number (114734520).

Almost surely, 2^870425587 is an apocalyptic number.

870425587 is a deficient number, since it is larger than the sum of its proper divisors (47450573).

870425587 is a wasteful number, since it uses less digits than its factorization.

870425587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81953.

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 870425587 is about 29502.9759007460. The cubic root of 870425587 is about 954.7959093492.

It can be divided in two parts, 87042 and 5587, that added together give a palindrome (92629).

The spelling of 870425587 in words is "eight hundred seventy million, four hundred twenty-five thousand, five hundred eighty-seven".