870625720 has 16 divisors (see below), whose sum is σ = 1958907960. Its totient is φ = 348250272.

The previous prime is 870625661. The next prime is 870625727. The reversal of 870625720 is 27526078.

It is a self number, because there is not a number n which added to its sum of digits gives 870625720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870625727) 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, 10882782 + ... + 10882861.

Almost surely, 2^870625720 is an apocalyptic number.

It is an amenable number.

870625720 is an abundant number, since it is smaller than the sum of its proper divisors (1088282240).

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

870625720 is a wasteful number, since it uses less digits than its factorization.

870625720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21765654 (or 21765650 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 870625720 is about 29506.3674484000. The cubic root of 870625720 is about 954.8690810364.

The spelling of 870625720 in words is "eight hundred seventy million, six hundred twenty-five thousand, seven hundred twenty".