2320489979 has 4 divisors (see below), whose sum is σ = 2320748976. Its totient is φ = 2320230984.

The previous prime is 2320489943. The next prime is 2320490057. The reversal of 2320489979 is 9799840232.

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 2320489979 - 2¹² = 2320485883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2320489979.

It is not an unprimeable number, because it can be changed into a prime (2320488979) 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, 115559 + ... + 134144.

It is an arithmetic number, because the mean of its divisors is an integer number (580187244).

Almost surely, 2^2320489979 is an apocalyptic number.

2320489979 is a deficient number, since it is larger than the sum of its proper divisors (258997).

2320489979 is an equidigital number, since it uses as much as digits as its factorization.

2320489979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258996.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 2320489979 is about 48171.4643642894. The cubic root of 2320489979 is about 1323.9143791058.

The spelling of 2320489979 in words is "two billion, three hundred twenty million, four hundred eighty-nine thousand, nine hundred seventy-nine".