3728896631 has 2 divisors, whose sum is σ = 3728896632. Its totient is φ = 3728896630.

The previous prime is 3728896627. The next prime is 3728896679. The reversal of 3728896631 is 1366988273.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3728896631 - 2² = 3728896627 is a prime.

It is a super-2 number, since 2×3728896631² = 27809340169366300322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3728896681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864448315 + 1864448316.

It is an arithmetic number, because the mean of its divisors is an integer number (1864448316).

Almost surely, 2^3728896631 is an apocalyptic number.

3728896631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728896631 is an equidigital number, since it uses as much as digits as its factorization.

3728896631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 3728896631 is about 61064.6921796876. The cubic root of 3728896631 is about 1550.6964100552.

The spelling of 3728896631 in words is "three billion, seven hundred twenty-eight million, eight hundred ninety-six thousand, six hundred thirty-one".