477564623 has 2 divisors, whose sum is σ = 477564624. Its totient is φ = 477564622.

The previous prime is 477564599. The next prime is 477564631. The reversal of 477564623 is 326465774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 477564623 - 2¹² = 477560527 is a prime.

It is a super-2 number, since 2×477564623² = 456135938282264258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477564683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238782311 + 238782312.

It is an arithmetic number, because the mean of its divisors is an integer number (238782312).

Almost surely, 2^477564623 is an apocalyptic number.

477564623 is a deficient number, since it is larger than the sum of its proper divisors (1).

477564623 is an equidigital number, since it uses as much as digits as its factorization.

477564623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 44.

The square root of 477564623 is about 21853.2520005605. The cubic root of 477564623 is about 781.6470909083.

The spelling of 477564623 in words is "four hundred seventy-seven million, five hundred sixty-four thousand, six hundred twenty-three".