870131976 has 64 divisors (see below), whose sum is σ = 2496873600. Its totient is φ = 247531008.

The previous prime is 870131953. The next prime is 870131981. The reversal of 870131976 is 679131078.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 28030 + ... + 50258.

It is an arithmetic number, because the mean of its divisors is an integer number (39013650).

Almost surely, 2^870131976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870131976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248436800).

870131976 is an abundant number, since it is smaller than the sum of its proper divisors (1626741624).

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

870131976 is a wasteful number, since it uses less digits than its factorization.

870131976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22478 (or 22474 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 870131976 is about 29497.9995253915. Note that the first 3 decimals coincide. The cubic root of 870131976 is about 954.6885403744.

The spelling of 870131976 in words is "eight hundred seventy million, one hundred thirty-one thousand, nine hundred seventy-six".