479769947 has 2 divisors, whose sum is σ = 479769948. Its totient is φ = 479769946.

The previous prime is 479769907. The next prime is 479769977. The reversal of 479769947 is 749967974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479769947 - 2⁶ = 479769883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 479769947.

It is not a weakly prime, because it can be changed into another prime (479769907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239884973 + 239884974.

It is an arithmetic number, because the mean of its divisors is an integer number (239884974).

Almost surely, 2^479769947 is an apocalyptic number.

479769947 is a deficient number, since it is larger than the sum of its proper divisors (1).

479769947 is an equidigital number, since it uses as much as digits as its factorization.

479769947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24004512, while the sum is 62.

The square root of 479769947 is about 21903.6514535819. The cubic root of 479769947 is about 782.8484211550.

The spelling of 479769947 in words is "four hundred seventy-nine million, seven hundred sixty-nine thousand, nine hundred forty-seven".