3938350631 has 2 divisors, whose sum is σ = 3938350632. Its totient is φ = 3938350630.

The previous prime is 3938350627. The next prime is 3938350643. The reversal of 3938350631 is 1360538393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3938350631 - 2² = 3938350627 is a prime.

It is a super-2 number, since 2×3938350631² = 31021211385396196322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3938350681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969175315 + 1969175316.

It is an arithmetic number, because the mean of its divisors is an integer number (1969175316).

Almost surely, 2^3938350631 is an apocalyptic number.

3938350631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938350631 is an equidigital number, since it uses as much as digits as its factorization.

3938350631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 3938350631 is about 62756.2796140753. The cubic root of 3938350631 is about 1579.2036032113.

The spelling of 3938350631 in words is "three billion, nine hundred thirty-eight million, three hundred fifty thousand, six hundred thirty-one".