423763731 has 20 divisors (see below), whose sum is σ = 636333192. Its totient is φ = 281035008.

The previous prime is 423763727. The next prime is 423763757. The reversal of 423763731 is 137367324.

It is not a de Polignac number, because 423763731 - 2² = 423763727 is a prime.

It is a super-2 number, since 2×423763731² = 359151399422080722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423763771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2080 + ... + 29186.

Almost surely, 2^423763731 is an apocalyptic number.

423763731 is a deficient number, since it is larger than the sum of its proper divisors (212569461).

423763731 is a wasteful number, since it uses less digits than its factorization.

423763731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27312 (or 27303 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The square root of 423763731 is about 20585.5223640305. The cubic root of 423763731 is about 751.1175818539.

The spelling of 423763731 in words is "four hundred twenty-three million, seven hundred sixty-three thousand, seven hundred thirty-one".