478164433 has 2 divisors, whose sum is σ = 478164434. Its totient is φ = 478164432.

The previous prime is 478164391. The next prime is 478164439. The reversal of 478164433 is 334461874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405096129 + 73068304 = 20127^2 + 8548^2 .

It is a cyclic number.

It is not a de Polignac number, because 478164433 - 2⁹ = 478163921 is a prime.

It is a super-2 number, since 2×478164433² = 457282449972422978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (478164439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239082216 + 239082217.

It is an arithmetic number, because the mean of its divisors is an integer number (239082217).

Almost surely, 2^478164433 is an apocalyptic number.

It is an amenable number.

478164433 is a deficient number, since it is larger than the sum of its proper divisors (1).

478164433 is an equidigital number, since it uses as much as digits as its factorization.

478164433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 478164433 is about 21866.9712809067. The cubic root of 478164433 is about 781.9741974903.

The spelling of 478164433 in words is "four hundred seventy-eight million, one hundred sixty-four thousand, four hundred thirty-three".