476679778 has 4 divisors (see below), whose sum is σ = 715019670. Its totient is φ = 238339888.

The previous prime is 476679773. The next prime is 476679829. The reversal of 476679778 is 877976674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877976674 = 2 ⋅438988337.

It can be written as a sum of positive squares in only one way, i.e., 429028369 + 47651409 = 20713^2 + 6903^2 .

It is a super-2 number, since 2×476679778² = 454447221508258568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (476679773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119169943 + ... + 119169946.

Almost surely, 2^476679778 is an apocalyptic number.

476679778 is a deficient number, since it is larger than the sum of its proper divisors (238339892).

476679778 is a wasteful number, since it uses less digits than its factorization.

476679778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238339891.

The product of its digits is 24893568, while the sum is 61.

The square root of 476679778 is about 21832.9974579763. The cubic root of 476679778 is about 781.1640399673.

The spelling of 476679778 in words is "four hundred seventy-six million, six hundred seventy-nine thousand, seven hundred seventy-eight".