478857311 has 2 divisors, whose sum is σ = 478857312. Its totient is φ = 478857310.

The previous prime is 478857289. The next prime is 478857317. The reversal of 478857311 is 113758874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478857311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478857317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239428655 + 239428656.

It is an arithmetic number, because the mean of its divisors is an integer number (239428656).

Almost surely, 2^478857311 is an apocalyptic number.

478857311 is a deficient number, since it is larger than the sum of its proper divisors (1).

478857311 is an equidigital number, since it uses as much as digits as its factorization.

478857311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 44.

The square root of 478857311 is about 21882.8085720275. The cubic root of 478857311 is about 782.3517184077.

The spelling of 478857311 in words is "four hundred seventy-eight million, eight hundred fifty-seven thousand, three hundred eleven".