477309009 has 4 divisors (see below), whose sum is σ = 636412016. Its totient is φ = 318206004.

The previous prime is 477308989. The next prime is 477309011. The reversal of 477309009 is 900903774.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-477309009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477309029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79551499 + ... + 79551504.

It is an arithmetic number, because the mean of its divisors is an integer number (159103004).

Almost surely, 2^477309009 is an apocalyptic number.

It is an amenable number.

477309009 is a deficient number, since it is larger than the sum of its proper divisors (159103007).

477309009 is a wasteful number, since it uses less digits than its factorization.

477309009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159103006.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 477309009 is about 21847.4027975867. The cubic root of 477309009 is about 781.5076084957.

The spelling of 477309009 in words is "four hundred seventy-seven million, three hundred nine thousand, nine".