3967508388 has 12 divisors (see below), whose sum is σ = 9257519600. Its totient is φ = 1322502792.

The previous prime is 3967508387. The next prime is 3967508393. The reversal of 3967508388 is 8838057693.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3967508388² = 31482245617700717088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3967508387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165312838 + ... + 165312861.

Almost surely, 2^3967508388 is an apocalyptic number.

It is an amenable number.

3967508388 is an abundant number, since it is smaller than the sum of its proper divisors (5290011212).

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

3967508388 is a wasteful number, since it uses less digits than its factorization.

3967508388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330625706 (or 330625704 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The square root of 3967508388 is about 62988.1606970707. The cubic root of 3967508388 is about 1583.0912598879.

The spelling of 3967508388 in words is "three billion, nine hundred sixty-seven million, five hundred eight thousand, three hundred eighty-eight".