3928392331 has 2 divisors, whose sum is σ = 3928392332. Its totient is φ = 3928392330.

The previous prime is 3928392319. The next prime is 3928392337. The reversal of 3928392331 is 1332938293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3928392331 - 2¹¹ = 3928390283 is a prime.

It is a super-2 number, since 2×3928392331² = 30864532612519227122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3928392337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1964196165 + 1964196166.

It is an arithmetic number, because the mean of its divisors is an integer number (1964196166).

Almost surely, 2^3928392331 is an apocalyptic number.

3928392331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3928392331 is an equidigital number, since it uses as much as digits as its factorization.

3928392331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 43.

The square root of 3928392331 is about 62676.8883321436. Note that the first 3 decimals coincide. The cubic root of 3928392331 is about 1577.8714502232.

The spelling of 3928392331 in words is "three billion, nine hundred twenty-eight million, three hundred ninety-two thousand, three hundred thirty-one".