477994417 has 2 divisors, whose sum is σ = 477994418. Its totient is φ = 477994416.

The previous prime is 477994411. The next prime is 477994463. The reversal of 477994417 is 714499774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476592561 + 1401856 = 21831^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 477994417 - 2³ = 477994409 is a prime.

It is not a weakly prime, because it can be changed into another prime (477994411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238997208 + 238997209.

It is an arithmetic number, because the mean of its divisors is an integer number (238997209).

Almost surely, 2^477994417 is an apocalyptic number.

It is an amenable number.

477994417 is a deficient number, since it is larger than the sum of its proper divisors (1).

477994417 is an equidigital number, since it uses as much as digits as its factorization.

477994417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 52.

The square root of 477994417 is about 21863.0834284645. The cubic root of 477994417 is about 781.8815070013.

The spelling of 477994417 in words is "four hundred seventy-seven million, nine hundred ninety-four thousand, four hundred seventeen".