3972685497 has 16 divisors (see below), whose sum is σ = 5795025600. Its totient is φ = 2400782400.

The previous prime is 3972685489. The next prime is 3972685567. The reversal of 3972685497 is 7945862793.

It is not a de Polignac number, because 3972685497 - 2³ = 3972685489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3972685497.

It is not an unprimeable number, because it can be changed into a prime (3972685427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160954 + ... + 183987.

It is an arithmetic number, because the mean of its divisors is an integer number (362189100).

Almost surely, 2^3972685497 is an apocalyptic number.

It is an amenable number.

3972685497 is a deficient number, since it is larger than the sum of its proper divisors (1822340103).

3972685497 is a wasteful number, since it uses less digits than its factorization.

3972685497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345304.

The product of its digits is 22861440, while the sum is 60.

The square root of 3972685497 is about 63029.2431891737. The cubic root of 3972685497 is about 1583.7795402004.

The spelling of 3972685497 in words is "three billion, nine hundred seventy-two million, six hundred eighty-five thousand, four hundred ninety-seven".