479149591 has 2 divisors, whose sum is σ = 479149592. Its totient is φ = 479149590.

The previous prime is 479149529. The next prime is 479149597. The reversal of 479149591 is 195941974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479149591 - 2⁹ = 479149079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479149597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239574795 + 239574796.

It is an arithmetic number, because the mean of its divisors is an integer number (239574796).

Almost surely, 2^479149591 is an apocalyptic number.

479149591 is a deficient number, since it is larger than the sum of its proper divisors (1).

479149591 is an equidigital number, since it uses as much as digits as its factorization.

479149591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 49.

The square root of 479149591 is about 21889.4858550858. The cubic root of 479149591 is about 782.5108606318.

The spelling of 479149591 in words is "four hundred seventy-nine million, one hundred forty-nine thousand, five hundred ninety-one".