3963556672 has 28 divisors (see below), whose sum is σ = 8136399780. Its totient is φ = 1913440256.

The previous prime is 3963556651. The next prime is 3963556733. The reversal of 3963556672 is 2766553693.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2820034816 + 1143521856 = 53104^2 + 33816^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065913 + ... + 1069624.

Almost surely, 2^3963556672 is an apocalyptic number.

3963556672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3963556672 is an abundant number, since it is smaller than the sum of its proper divisors (4172843108).

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

3963556672 is a wasteful number, since it uses less digits than its factorization.

3963556672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135578 (or 2135568 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 52.

The square root of 3963556672 is about 62956.7841618360. The cubic root of 3963556672 is about 1582.5654886643.

The spelling of 3963556672 in words is "three billion, nine hundred sixty-three million, five hundred fifty-six thousand, six hundred seventy-two".