3972375565 has 16 divisors (see below), whose sum is σ = 4832628480. Its totient is φ = 3134139840.

The previous prime is 3972375527. The next prime is 3972375577. The reversal of 3972375565 is 5655732793.

It is not a de Polignac number, because 3972375565 - 2⁷ = 3972375437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378367 + ... + 388723.

It is an arithmetic number, because the mean of its divisors is an integer number (302039280).

Almost surely, 2^3972375565 is an apocalyptic number.

It is an amenable number.

3972375565 is a deficient number, since it is larger than the sum of its proper divisors (860252915).

3972375565 is a wasteful number, since it uses less digits than its factorization.

3972375565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11412.

The product of its digits is 5953500, while the sum is 52.

The square root of 3972375565 is about 63026.7845046850. The cubic root of 3972375565 is about 1583.7383525516.

The spelling of 3972375565 in words is "three billion, nine hundred seventy-two million, three hundred seventy-five thousand, five hundred sixty-five".