477638698 has 16 divisors (see below), whose sum is σ = 779107464. Its totient is φ = 218695680.

The previous prime is 477638687. The next prime is 477638699. The reversal of 477638698 is 896836774.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 421193529 + 56445169 = 20523^2 + 7513^2 .

It is not an unprimeable number, because it can be changed into a prime (477638699) 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, 188583 + ... + 191098.

Almost surely, 2^477638698 is an apocalyptic number.

477638698 is a deficient number, since it is larger than the sum of its proper divisors (301468766).

477638698 is a wasteful number, since it uses less digits than its factorization.

477638698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379737.

The product of its digits is 12192768, while the sum is 58.

The square root of 477638698 is about 21854.9467626897. The cubic root of 477638698 is about 781.6875025525.

The spelling of 477638698 in words is "four hundred seventy-seven million, six hundred thirty-eight thousand, six hundred ninety-eight".