463664623 has 4 divisors (see below), whose sum is σ = 466226488. Its totient is φ = 461102760.

The previous prime is 463664603. The next prime is 463664629. The reversal of 463664623 is 326466364.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-463664623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (463664629) 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, 1280661 + ... + 1281022.

It is an arithmetic number, because the mean of its divisors is an integer number (116556622).

Almost surely, 2^463664623 is an apocalyptic number.

463664623 is a deficient number, since it is larger than the sum of its proper divisors (2561865).

463664623 is a wasteful number, since it uses less digits than its factorization.

463664623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561864.

The product of its digits is 373248, while the sum is 40.

The square root of 463664623 is about 21532.8730781566. The cubic root of 463664623 is about 773.9887597493.

The spelling of 463664623 in words is "four hundred sixty-three million, six hundred sixty-four thousand, six hundred twenty-three".