427931323 has 2 divisors, whose sum is σ = 427931324. Its totient is φ = 427931322.

The previous prime is 427931303. The next prime is 427931333. The reversal of 427931323 is 323139724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427931323 - 2²⁵ = 394376891 is a prime.

It is not a weakly prime, because it can be changed into another prime (427931303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213965661 + 213965662.

It is an arithmetic number, because the mean of its divisors is an integer number (213965662).

Almost surely, 2^427931323 is an apocalyptic number.

427931323 is a deficient number, since it is larger than the sum of its proper divisors (1).

427931323 is an equidigital number, since it uses as much as digits as its factorization.

427931323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 34.

The square root of 427931323 is about 20686.5009849418. The cubic root of 427931323 is about 753.5718939079.

The spelling of 427931323 in words is "four hundred twenty-seven million, nine hundred thirty-one thousand, three hundred twenty-three".