477664693 has 8 divisors (see below), whose sum is σ = 548514720. Its totient is φ = 411385680.

The previous prime is 477664669. The next prime is 477664703. The reversal of 477664693 is 396466774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 477664693 - 2⁵ = 477664661 is a prime.

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 477664693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477664613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142530 + ... + 1142947.

It is an arithmetic number, because the mean of its divisors is an integer number (68564340).

Almost surely, 2^477664693 is an apocalyptic number.

It is an amenable number.

477664693 is a deficient number, since it is larger than the sum of its proper divisors (70850027).

477664693 is a wasteful number, since it uses less digits than its factorization.

477664693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285507.

The product of its digits is 4572288, while the sum is 52.

The square root of 477664693 is about 21855.5414712150. The cubic root of 477664693 is about 781.7016831441.

The spelling of 477664693 in words is "four hundred seventy-seven million, six hundred sixty-four thousand, six hundred ninety-three".