489915079 has 4 divisors (see below), whose sum is σ = 490249600. Its totient is φ = 489580560.

The previous prime is 489915077. The next prime is 489915089. The reversal of 489915079 is 970519984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489915079 - 2¹ = 489915077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489915077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165054 + ... + 167995.

It is an arithmetic number, because the mean of its divisors is an integer number (122562400).

Almost surely, 2^489915079 is an apocalyptic number.

489915079 is a deficient number, since it is larger than the sum of its proper divisors (334521).

489915079 is a wasteful number, since it uses less digits than its factorization.

489915079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334520.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 489915079 is about 22134.0253681973. The cubic root of 489915079 is about 788.3279698239.

The spelling of 489915079 in words is "four hundred eighty-nine million, nine hundred fifteen thousand, seventy-nine".