477790978 has 8 divisors (see below), whose sum is σ = 819070272. Its totient is φ = 204767556.

The previous prime is 477790961. The next prime is 477790987. The reversal of 477790978 is 879097774.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17063950 + ... + 17063977.

It is an arithmetic number, because the mean of its divisors is an integer number (102383784).

Almost surely, 2^477790978 is an apocalyptic number.

477790978 is a deficient number, since it is larger than the sum of its proper divisors (341279294).

477790978 is a wasteful number, since it uses less digits than its factorization.

477790978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34127936.

The product of its (nonzero) digits is 6223392, while the sum is 58.

The square root of 477790978 is about 21858.4303645070. The cubic root of 477790978 is about 781.7705658424.

The spelling of 477790978 in words is "four hundred seventy-seven million, seven hundred ninety thousand, nine hundred seventy-eight".