3926217864 has 32 divisors (see below), whose sum is σ = 10392930720. Its totient is φ = 1231754496.

The previous prime is 3926217857. The next prime is 3926217887. The reversal of 3926217864 is 4687126293.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811134 + ... + 4811949.

It is an arithmetic number, because the mean of its divisors is an integer number (324779085).

Almost surely, 2^3926217864 is an apocalyptic number.

3926217864 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3926217864 is an abundant number, since it is smaller than the sum of its proper divisors (6466712856).

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

3926217864 is a wasteful number, since it uses less digits than its factorization.

3926217864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9623109 (or 9623105 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 3926217864 is about 62659.5392897203. The cubic root of 3926217864 is about 1577.5802655723.

The spelling of 3926217864 in words is "three billion, nine hundred twenty-six million, two hundred seventeen thousand, eight hundred sixty-four".