3722636897 has 16 divisors (see below), whose sum is σ = 4524936192. Its totient is φ = 2989647360.

The previous prime is 3722636851. The next prime is 3722636903. The reversal of 3722636897 is 7986362273.

It is not a de Polignac number, because 3722636897 - 2²² = 3718442593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3722636837) 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, 43604 + ... + 96677.

It is an arithmetic number, because the mean of its divisors is an integer number (282808512).

Almost surely, 2^3722636897 is an apocalyptic number.

It is an amenable number.

3722636897 is a deficient number, since it is larger than the sum of its proper divisors (802299295).

3722636897 is a wasteful number, since it uses less digits than its factorization.

3722636897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140528.

The product of its digits is 4572288, while the sum is 53.

The square root of 3722636897 is about 61013.4157132675. The cubic root of 3722636897 is about 1549.8282011462.

The spelling of 3722636897 in words is "three billion, seven hundred twenty-two million, six hundred thirty-six thousand, eight hundred ninety-seven".