2289979 has 2 divisors, whose sum is σ = 2289980. Its totient is φ = 2289978.

The previous prime is 2289961. The next prime is 2290003. The reversal of 2289979 is 9799822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2289979 - 2⁹ = 2289467 is a prime.

2289979 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2289919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144989 + 1144990.

It is an arithmetic number, because the mean of its divisors is an integer number (1144990).

2^2289979 is an apocalyptic number.

2289979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2289979 is an equidigital number, since it uses as much as digits as its factorization.

2289979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 2289979 is about 1513.2676564309. The cubic root of 2289979 is about 131.8086261080.

The spelling of 2289979 in words is "two million, two hundred eighty-nine thousand, nine hundred seventy-nine".