423234731 has 2 divisors, whose sum is σ = 423234732. Its totient is φ = 423234730.

The previous prime is 423234727. The next prime is 423234761. The reversal of 423234731 is 137432324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423234731 - 2² = 423234727 is a prime.

It is a super-2 number, since 2×423234731² = 358255275049284722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 423234694 and 423234703.

It is not a weakly prime, because it can be changed into another prime (423234701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211617365 + 211617366.

It is an arithmetic number, because the mean of its divisors is an integer number (211617366).

Almost surely, 2^423234731 is an apocalyptic number.

423234731 is a deficient number, since it is larger than the sum of its proper divisors (1).

423234731 is an equidigital number, since it uses as much as digits as its factorization.

423234731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 29.

The square root of 423234731 is about 20572.6695156462. The cubic root of 423234731 is about 750.8049023857.

The spelling of 423234731 in words is "four hundred twenty-three million, two hundred thirty-four thousand, seven hundred thirty-one".