479320691 has 2 divisors, whose sum is σ = 479320692. Its totient is φ = 479320690.

The previous prime is 479320687. The next prime is 479320727. The reversal of 479320691 is 196023974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 479320691 - 2² = 479320687 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (479320291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239660345 + 239660346.

It is an arithmetic number, because the mean of its divisors is an integer number (239660346).

Almost surely, 2^479320691 is an apocalyptic number.

479320691 is a deficient number, since it is larger than the sum of its proper divisors (1).

479320691 is an equidigital number, since it uses as much as digits as its factorization.

479320691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 479320691 is about 21893.3937752921. The cubic root of 479320691 is about 782.6039920722.

The spelling of 479320691 in words is "four hundred seventy-nine million, three hundred twenty thousand, six hundred ninety-one".