499458979 has 2 divisors, whose sum is σ = 499458980. Its totient is φ = 499458978.

The previous prime is 499458941. The next prime is 499458991. The reversal of 499458979 is 979854994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499458979 - 2⁹ = 499458467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499458979.

It is not a weakly prime, because it can be changed into another prime (499450979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249729489 + 249729490.

It is an arithmetic number, because the mean of its divisors is an integer number (249729490).

Almost surely, 2^499458979 is an apocalyptic number.

499458979 is a deficient number, since it is larger than the sum of its proper divisors (1).

499458979 is an equidigital number, since it uses as much as digits as its factorization.

499458979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 64.

The square root of 499458979 is about 22348.5789033665. The cubic root of 499458979 is about 793.4141502342.

The spelling of 499458979 in words is "four hundred ninety-nine million, four hundred fifty-eight thousand, nine hundred seventy-nine".