477421866 has 12 divisors (see below), whose sum is σ = 1034414082. Its totient is φ = 159140616.

The previous prime is 477421843. The next prime is 477421891. The reversal of 477421866 is 668124774.

It can be written as a sum of positive squares in only one way, i.e., 248535225 + 228886641 = 15765^2 + 15129^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13261701 + ... + 13261736.

Almost surely, 2^477421866 is an apocalyptic number.

477421866 is an abundant number, since it is smaller than the sum of its proper divisors (556992216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

477421866 is a wasteful number, since it uses less digits than its factorization.

477421866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26523445 (or 26523442 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 477421866 is about 21849.9854919860. The cubic root of 477421866 is about 781.5691979846.

The spelling of 477421866 in words is "four hundred seventy-seven million, four hundred twenty-one thousand, eight hundred sixty-six".