478797013 has 2 divisors, whose sum is σ = 478797014. Its totient is φ = 478797012.

The previous prime is 478796971. The next prime is 478797019. The reversal of 478797013 is 310797874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344399364 + 134397649 = 18558^2 + 11593^2 .

It is a cyclic number.

It is not a de Polignac number, because 478797013 - 2⁹ = 478796501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478797019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239398506 + 239398507.

It is an arithmetic number, because the mean of its divisors is an integer number (239398507).

Almost surely, 2^478797013 is an apocalyptic number.

It is an amenable number.

478797013 is a deficient number, since it is larger than the sum of its proper divisors (1).

478797013 is an equidigital number, since it uses as much as digits as its factorization.

478797013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 478797013 is about 21881.4307804586. The cubic root of 478797013 is about 782.3188789633.

The spelling of 478797013 in words is "four hundred seventy-eight million, seven hundred ninety-seven thousand, thirteen".