2239979 has 8 divisors (see below), whose sum is σ = 2596608. Its totient is φ = 1892520.

The previous prime is 2239961. The next prime is 2239987. The reversal of 2239979 is 9799322.

2239979 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2239979 - 2⁸ = 2239723 is a prime.

It is an Ulam number.

2239979 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (2239949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (324576).

2^2239979 is an apocalyptic number.

2239979 is a deficient number, since it is larger than the sum of its proper divisors (356629).

2239979 is an equidigital number, since it uses as much as digits as its factorization.

2239979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585.

The product of its digits is 61236, while the sum is 41.

The square root of 2239979 is about 1496.6559390855. The cubic root of 2239979 is about 130.8422435230.

The spelling of 2239979 in words is "two million, two hundred thirty-nine thousand, nine hundred seventy-nine".