476643646 has 4 divisors (see below), whose sum is σ = 714965472. Its totient is φ = 238321822.

The previous prime is 476643619. The next prime is 476643659. The reversal of 476643646 is 646346674.

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

It is a junction number, because it is equal to n+sod(n) for n = 476643596 and 476643605.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 119160910 + ... + 119160913.

It is an arithmetic number, because the mean of its divisors is an integer number (178741368).

Almost surely, 2^476643646 is an apocalyptic number.

476643646 is a deficient number, since it is larger than the sum of its proper divisors (238321826).

476643646 is a wasteful number, since it uses less digits than its factorization.

476643646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238321825.

The product of its digits is 1741824, while the sum is 46.

The square root of 476643646 is about 21832.1699791844. The cubic root of 476643646 is about 781.1443022359.

The spelling of 476643646 in words is "four hundred seventy-six million, six hundred forty-three thousand, six hundred forty-six".