3876942731 has 2 divisors, whose sum is σ = 3876942732. Its totient is φ = 3876942730.

The previous prime is 3876942709. The next prime is 3876942757. The reversal of 3876942731 is 1372496783.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3876942731 is a prime.

It is a super-2 number, since 2×3876942731² = 30061369878907476722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3876942731.

It is not a weakly prime, because it can be changed into another prime (3876942781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1938471365 + 1938471366.

It is an arithmetic number, because the mean of its divisors is an integer number (1938471366).

Almost surely, 2^3876942731 is an apocalyptic number.

3876942731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3876942731 is an equidigital number, since it uses as much as digits as its factorization.

3876942731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 3876942731 is about 62265.1004255193. The cubic root of 3876942731 is about 1570.9527708396.

The spelling of 3876942731 in words is "three billion, eight hundred seventy-six million, nine hundred forty-two thousand, seven hundred thirty-one".