3914631491 has 2 divisors, whose sum is σ = 3914631492. Its totient is φ = 3914631490.

The previous prime is 3914631449. The next prime is 3914631499. The reversal of 3914631491 is 1941364193.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3914631491 is a prime.

It is not a weakly prime, because it can be changed into another prime (3914631499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957315745 + 1957315746.

It is an arithmetic number, because the mean of its divisors is an integer number (1957315746).

Almost surely, 2^3914631491 is an apocalyptic number.

3914631491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3914631491 is an equidigital number, since it uses as much as digits as its factorization.

3914631491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 3914631491 is about 62567.0159988472. The cubic root of 3914631491 is about 1576.0269095088.

The spelling of 3914631491 in words is "three billion, nine hundred fourteen million, six hundred thirty-one thousand, four hundred ninety-one".