464972509 has 2 divisors, whose sum is σ = 464972510. Its totient is φ = 464972508.

The previous prime is 464972489. The next prime is 464972533. The reversal of 464972509 is 905279464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315595225 + 149377284 = 17765^2 + 12222^2 .

It is a cyclic number.

It is not a de Polignac number, because 464972509 - 2⁷ = 464972381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464972609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232486254 + 232486255.

It is an arithmetic number, because the mean of its divisors is an integer number (232486255).

Almost surely, 2^464972509 is an apocalyptic number.

It is an amenable number.

464972509 is a deficient number, since it is larger than the sum of its proper divisors (1).

464972509 is an equidigital number, since it uses as much as digits as its factorization.

464972509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 464972509 is about 21563.2212111271. The cubic root of 464972509 is about 774.7158217203.

The spelling of 464972509 in words is "four hundred sixty-four million, nine hundred seventy-two thousand, five hundred nine".