3948431564 has 36 divisors (see below), whose sum is σ = 8768599560. Its totient is φ = 1538349120.

The previous prime is 3948431537. The next prime is 3948431567. The reversal of 3948431564 is 4651348493.

It is a super-2 number, since 2×3948431564² = 31180223631182972192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3948431567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 913529 + ... + 917840.

It is an arithmetic number, because the mean of its divisors is an integer number (243572210).

Almost surely, 2^3948431564 is an apocalyptic number.

It is an amenable number.

3948431564 is an abundant number, since it is smaller than the sum of its proper divisors (4820167996).

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

3948431564 is a wasteful number, since it uses less digits than its factorization.

3948431564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831398 (or 1831389 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 47.

The square root of 3948431564 is about 62836.5464041429. The cubic root of 3948431564 is about 1580.5498759054.

The spelling of 3948431564 in words is "three billion, nine hundred forty-eight million, four hundred thirty-one thousand, five hundred sixty-four".