479999977 has 2 divisors, whose sum is σ = 479999978. Its totient is φ = 479999976.

The previous prime is 479999969. The next prime is 480000019. The reversal of 479999977 is 779999974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415181376 + 64818601 = 20376^2 + 8051^2 .

It is a cyclic number.

It is not a de Polignac number, because 479999977 - 2³ = 479999969 is a prime.

It is not a weakly prime, because it can be changed into another prime (479999077) 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, 239999988 + 239999989.

It is an arithmetic number, because the mean of its divisors is an integer number (239999989).

Almost surely, 2^479999977 is an apocalyptic number.

It is an amenable number.

479999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

479999977 is an equidigital number, since it uses as much as digits as its factorization.

479999977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81015228, while the sum is 70.

The square root of 479999977 is about 21908.9017753059. The cubic root of 479999977 is about 782.9735157279.

The spelling of 479999977 in words is "four hundred seventy-nine million, nine hundred ninety-nine thousand, nine hundred seventy-seven".