464523391 has 2 divisors, whose sum is σ = 464523392. Its totient is φ = 464523390.

The previous prime is 464523379. The next prime is 464523413. The reversal of 464523391 is 193325464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 464523391 - 2²⁵ = 430968959 is a prime.

It is a super-2 number, since 2×464523391² = 431563961572277762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 464523391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464523491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232261695 + 232261696.

It is an arithmetic number, because the mean of its divisors is an integer number (232261696).

Almost surely, 2^464523391 is an apocalyptic number.

464523391 is a deficient number, since it is larger than the sum of its proper divisors (1).

464523391 is an equidigital number, since it uses as much as digits as its factorization.

464523391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 464523391 is about 21552.8047130762. The cubic root of 464523391 is about 774.4663081119.

The spelling of 464523391 in words is "four hundred sixty-four million, five hundred twenty-three thousand, three hundred ninety-one".