464618631 has 4 divisors (see below), whose sum is σ = 619491512. Its totient is φ = 309745752.

The previous prime is 464618621. The next prime is 464618659. The reversal of 464618631 is 136816464.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 464618631 - 2¹⁷ = 464487559 is a prime.

It is a super-2 number, since 2×464618631² = 431740944544628322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 464618631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464618611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77436436 + ... + 77436441.

It is an arithmetic number, because the mean of its divisors is an integer number (154872878).

Almost surely, 2^464618631 is an apocalyptic number.

464618631 is a deficient number, since it is larger than the sum of its proper divisors (154872881).

464618631 is a wasteful number, since it uses less digits than its factorization.

464618631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154872880.

The product of its digits is 82944, while the sum is 39.

The square root of 464618631 is about 21555.0140570587. The cubic root of 464618631 is about 774.5192334200.

The spelling of 464618631 in words is "four hundred sixty-four million, six hundred eighteen thousand, six hundred thirty-one".