478866433 has 2 divisors, whose sum is σ = 478866434. Its totient is φ = 478866432.

The previous prime is 478866403. The next prime is 478866457. The reversal of 478866433 is 334668874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252905409 + 225961024 = 15903^2 + 15032^2 .

It is a cyclic number.

It is not a de Polignac number, because 478866433 - 2²¹ = 476769281 is a prime.

It is not a weakly prime, because it can be changed into another prime (478866403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239433216 + 239433217.

It is an arithmetic number, because the mean of its divisors is an integer number (239433217).

Almost surely, 2^478866433 is an apocalyptic number.

It is an amenable number.

478866433 is a deficient number, since it is larger than the sum of its proper divisors (1).

478866433 is an equidigital number, since it uses as much as digits as its factorization.

478866433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 49.

The square root of 478866433 is about 21883.0169994907. The cubic root of 478866433 is about 782.3566861833.

The spelling of 478866433 in words is "four hundred seventy-eight million, eight hundred sixty-six thousand, four hundred thirty-three".