478701617 has 2 divisors, whose sum is σ = 478701618. Its totient is φ = 478701616.

The previous prime is 478701607. The next prime is 478701647. The reversal of 478701617 is 716107874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 454926241 + 23775376 = 21329^2 + 4876^2 .

It is a cyclic number.

It is not a de Polignac number, because 478701617 - 2⁸ = 478701361 is a prime.

It is not a weakly prime, because it can be changed into another prime (478701607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239350808 + 239350809.

It is an arithmetic number, because the mean of its divisors is an integer number (239350809).

Almost surely, 2^478701617 is an apocalyptic number.

It is an amenable number.

478701617 is a deficient number, since it is larger than the sum of its proper divisors (1).

478701617 is an equidigital number, since it uses as much as digits as its factorization.

478701617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 478701617 is about 21879.2508326953. The cubic root of 478701617 is about 782.2669188446.

The spelling of 478701617 in words is "four hundred seventy-eight million, seven hundred one thousand, six hundred seventeen".