477984639 has 8 divisors (see below), whose sum is σ = 695250432. Its totient is φ = 289687640.

The previous prime is 477984613. The next prime is 477984649. The reversal of 477984639 is 936489774.

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

It is not a de Polignac number, because 477984639 - 2⁹ = 477984127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477984649) 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, 7242159 + ... + 7242224.

It is an arithmetic number, because the mean of its divisors is an integer number (86906304).

Almost surely, 2^477984639 is an apocalyptic number.

477984639 is a deficient number, since it is larger than the sum of its proper divisors (217265793).

477984639 is a wasteful number, since it uses less digits than its factorization.

477984639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14484397.

The product of its digits is 9144576, while the sum is 57.

The square root of 477984639 is about 21862.8598083599. The cubic root of 477984639 is about 781.8761754959.

The spelling of 477984639 in words is "four hundred seventy-seven million, nine hundred eighty-four thousand, six hundred thirty-nine".