479401591 has 2 divisors, whose sum is σ = 479401592. Its totient is φ = 479401590.

The previous prime is 479401567. The next prime is 479401603. The reversal of 479401591 is 195104974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479401591 - 2⁷ = 479401463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479401691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239700795 + 239700796.

It is an arithmetic number, because the mean of its divisors is an integer number (239700796).

Almost surely, 2^479401591 is an apocalyptic number.

479401591 is a deficient number, since it is larger than the sum of its proper divisors (1).

479401591 is an equidigital number, since it uses as much as digits as its factorization.

479401591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 479401591 is about 21895.2412866358. The cubic root of 479401591 is about 782.6480190340.

The spelling of 479401591 in words is "four hundred seventy-nine million, four hundred one thousand, five hundred ninety-one".