3722976731 has 2 divisors, whose sum is σ = 3722976732. Its totient is φ = 3722976730.

The previous prime is 3722976721. The next prime is 3722976743. The reversal of 3722976731 is 1376792273.

It is a happy number.

3722976731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3722976731 is a prime.

It is a super-2 number, since 2×3722976731² = 27721111479134892722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3722976721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1861488365 + 1861488366.

It is an arithmetic number, because the mean of its divisors is an integer number (1861488366).

Almost surely, 2^3722976731 is an apocalyptic number.

3722976731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3722976731 is an equidigital number, since it uses as much as digits as its factorization.

3722976731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 47.

The square root of 3722976731 is about 61016.2005618180. The cubic root of 3722976731 is about 1549.8753602170.

The spelling of 3722976731 in words is "three billion, seven hundred twenty-two million, nine hundred seventy-six thousand, seven hundred thirty-one".