3951889313 has 2 divisors, whose sum is σ = 3951889314. Its totient is φ = 3951889312.

The previous prime is 3951889301. The next prime is 3951889369. The reversal of 3951889313 is 3139881593.

3951889313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2343237649 + 1608651664 = 48407^2 + 40108^2 .

It is a cyclic number.

It is not a de Polignac number, because 3951889313 - 2⁸ = 3951889057 is a prime.

It is a super-2 number, since 2×3951889313² = 31234858284407223938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3951889373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1975944656 + 1975944657.

It is an arithmetic number, because the mean of its divisors is an integer number (1975944657).

Almost surely, 2^3951889313 is an apocalyptic number.

It is an amenable number.

3951889313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3951889313 is an equidigital number, since it uses as much as digits as its factorization.

3951889313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 50.

The square root of 3951889313 is about 62864.0542201980. The cubic root of 3951889313 is about 1581.0111181408.

The spelling of 3951889313 in words is "three billion, nine hundred fifty-one million, eight hundred eighty-nine thousand, three hundred thirteen".