3975890231 has 2 divisors, whose sum is σ = 3975890232. Its totient is φ = 3975890230.

The previous prime is 3975890221. The next prime is 3975890251. The reversal of 3975890231 is 1320985793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3975890231 is a prime.

It is a super-2 number, since 2×3975890231² = 31615406257922466722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3975890221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987945115 + 1987945116.

It is an arithmetic number, because the mean of its divisors is an integer number (1987945116).

Almost surely, 2^3975890231 is an apocalyptic number.

3975890231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975890231 is an equidigital number, since it uses as much as digits as its factorization.

3975890231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 3975890231 is about 63054.6606604143. The cubic root of 3975890231 is about 1584.2052998822.

The spelling of 3975890231 in words is "three billion, nine hundred seventy-five million, eight hundred ninety thousand, two hundred thirty-one".