2421959 has 2 divisors, whose sum is σ = 2421960. Its totient is φ = 2421958.

The previous prime is 2421943. The next prime is 2421971. The reversal of 2421959 is 9591242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421959 - 2⁴ = 2421943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210979 + 1210980.

It is an arithmetic number, because the mean of its divisors is an integer number (1210980).

2^2421959 is an apocalyptic number.

2421959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421959 is an equidigital number, since it uses as much as digits as its factorization.

2421959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 2421959 is about 1556.2644376840. The cubic root of 2421959 is about 134.2936864460.

The spelling of 2421959 in words is "two million, four hundred twenty-one thousand, nine hundred fifty-nine".