423763931 has 2 divisors, whose sum is σ = 423763932. Its totient is φ = 423763930.

The previous prime is 423763927. The next prime is 423763943. The reversal of 423763931 is 139367324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423763931 - 2² = 423763927 is a prime.

It is a super-2 number, since 2×423763931² = 359151738433145522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423763961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211881965 + 211881966.

It is an arithmetic number, because the mean of its divisors is an integer number (211881966).

Almost surely, 2^423763931 is an apocalyptic number.

423763931 is a deficient number, since it is larger than the sum of its proper divisors (1).

423763931 is an equidigital number, since it uses as much as digits as its factorization.

423763931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 38.

The square root of 423763931 is about 20585.5272218129. The cubic root of 423763931 is about 751.1177000200.

The spelling of 423763931 in words is "four hundred twenty-three million, seven hundred sixty-three thousand, nine hundred thirty-one".