477508609 has 2 divisors, whose sum is σ = 477508610. Its totient is φ = 477508608.

The previous prime is 477508607. The next prime is 477508613. The reversal of 477508609 is 906805774.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438483600 + 39025009 = 20940^2 + 6247^2 .

It is a cyclic number.

It is not a de Polignac number, because 477508609 - 2¹ = 477508607 is a prime.

It is a super-2 number, since 2×477508609² = 456028943338229762, which contains 22 as substring.

Together with 477508607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (477508601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238754304 + 238754305.

It is an arithmetic number, because the mean of its divisors is an integer number (238754305).

Almost surely, 2^477508609 is an apocalyptic number.

It is an amenable number.

477508609 is a deficient number, since it is larger than the sum of its proper divisors (1).

477508609 is an equidigital number, since it uses as much as digits as its factorization.

477508609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 477508609 is about 21851.9703688249. The cubic root of 477508609 is about 781.6165296747.

The spelling of 477508609 in words is "four hundred seventy-seven million, five hundred eight thousand, six hundred nine".