870740928 has 112 divisors (see below), whose sum is σ = 2591836320. Its totient is φ = 290200320.

The previous prime is 870740881. The next prime is 870740957. The reversal of 870740928 is 829047078.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136858 + ... + 143078.

Almost surely, 2^870740928 is an apocalyptic number.

870740928 is the 18663-rd heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870740928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295918160).

870740928 is an abundant number, since it is smaller than the sum of its proper divisors (1721095392).

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

870740928 is an frugal number, since it uses more digits than its factorization.

870740928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254 (or 6226 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 870740928 is about 29508.3196403997. The cubic root of 870740928 is about 954.9111977588.

The spelling of 870740928 in words is "eight hundred seventy million, seven hundred forty thousand, nine hundred twenty-eight".