499388979 has 8 divisors (see below), whose sum is σ = 682092432. Its totient is φ = 324805760.

The previous prime is 499388977. The next prime is 499388999. The reversal of 499388979 is 979883994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499388979 - 2¹ = 499388977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499388977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029914 + ... + 2030159.

It is an arithmetic number, because the mean of its divisors is an integer number (85261554).

Almost surely, 2^499388979 is an apocalyptic number.

499388979 is a deficient number, since it is larger than the sum of its proper divisors (182703453).

499388979 is a wasteful number, since it uses less digits than its factorization.

499388979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060117.

The product of its digits is 35271936, while the sum is 66.

The square root of 499388979 is about 22347.0127533861. The cubic root of 499388979 is about 793.3770824017.

The spelling of 499388979 in words is "four hundred ninety-nine million, three hundred eighty-eight thousand, nine hundred seventy-nine".