2426639 has 2 divisors, whose sum is σ = 2426640. Its totient is φ = 2426638.

The previous prime is 2426621. The next prime is 2426647. The reversal of 2426639 is 9366242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2426639 - 2⁸ = 2426383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2426609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213319 + 1213320.

It is an arithmetic number, because the mean of its divisors is an integer number (1213320).

2^2426639 is an apocalyptic number.

2426639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2426639 is an equidigital number, since it uses as much as digits as its factorization.

2426639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 2426639 is about 1557.7673125342. The cubic root of 2426639 is about 134.3801302530.

The spelling of 2426639 in words is "two million, four hundred twenty-six thousand, six hundred thirty-nine".