8670390864 has 40 divisors (see below), whose sum is σ = 23716071360. Its totient is φ = 2720122368.

The previous prime is 8670390863. The next prime is 8670390877. The reversal of 8670390864 is 4680930768.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8670390863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5311924 + ... + 5313555.

It is an arithmetic number, because the mean of its divisors is an integer number (592901784).

Almost surely, 2^8670390864 is an apocalyptic number.

It is an amenable number.

8670390864 is an abundant number, since it is smaller than the sum of its proper divisors (15045680496).

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

8670390864 is a wasteful number, since it uses less digits than its factorization.

8670390864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625507 (or 10625501 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 8670390864 is about 93114.9336250636. The cubic root of 8670390864 is about 2054.3742301712.

The spelling of 8670390864 in words is "eight billion, six hundred seventy million, three hundred ninety thousand, eight hundred sixty-four".