3701631961 has 2 divisors, whose sum is σ = 3701631962. Its totient is φ = 3701631960.

The previous prime is 3701631943. The next prime is 3701631977. The reversal of 3701631961 is 1691361073.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2021041936 + 1680590025 = 44956^2 + 40995^2 .

It is a cyclic number.

It is not a de Polignac number, because 3701631961 - 2⁵ = 3701631929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3701631961.

It is not a weakly prime, because it can be changed into another prime (3701631991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1850815980 + 1850815981.

It is an arithmetic number, because the mean of its divisors is an integer number (1850815981).

Almost surely, 2^3701631961 is an apocalyptic number.

It is an amenable number.

3701631961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3701631961 is an equidigital number, since it uses as much as digits as its factorization.

3701631961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 3701631961 is about 60841.0384608941. The cubic root of 3701631961 is about 1546.9077387302.

The spelling of 3701631961 in words is "three billion, seven hundred one million, six hundred thirty-one thousand, nine hundred sixty-one".