2493979 has 2 divisors, whose sum is σ = 2493980. Its totient is φ = 2493978.

The previous prime is 2493949. The next prime is 2493983. The reversal of 2493979 is 9793942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2493979 - 2⁵ = 2493947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2493929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246989 + 1246990.

It is an arithmetic number, because the mean of its divisors is an integer number (1246990).

2^2493979 is an apocalyptic number.

2493979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2493979 is an equidigital number, since it uses as much as digits as its factorization.

2493979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 2493979 is about 1579.2336749196. The cubic root of 2493979 is about 135.6118365189.

The spelling of 2493979 in words is "two million, four hundred ninety-three thousand, nine hundred seventy-nine".