870089697 has 24 divisors (see below), whose sum is σ = 1322193600. Its totient is φ = 550555488.

The previous prime is 870089687. The next prime is 870089729. The reversal of 870089697 is 796980078.

It is not a de Polignac number, because 870089697 - 2⁴ = 870089681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870089677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12853 + ... + 43650.

It is an arithmetic number, because the mean of its divisors is an integer number (55091400).

Almost surely, 2^870089697 is an apocalyptic number.

870089697 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

870089697 is a deficient number, since it is larger than the sum of its proper divisors (452103903).

870089697 is a wasteful number, since it uses less digits than its factorization.

870089697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56597 (or 56594 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 870089697 is about 29497.2828748683. The cubic root of 870089697 is about 954.6730776126.

The spelling of 870089697 in words is "eight hundred seventy million, eighty-nine thousand, six hundred ninety-seven".