4262639 has 2 divisors, whose sum is σ = 4262640. Its totient is φ = 4262638.

The previous prime is 4262617. The next prime is 4262653. The reversal of 4262639 is 9362624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4262639 - 2¹⁶ = 4197103 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 (4262239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2131319 + 2131320.

It is an arithmetic number, because the mean of its divisors is an integer number (2131320).

Almost surely, 2^4262639 is an apocalyptic number.

4262639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4262639 is an equidigital number, since it uses as much as digits as its factorization.

4262639 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4262639 is about 2064.6159449157. The cubic root of 4262639 is about 162.1410015599.

The spelling of 4262639 in words is "four million, two hundred sixty-two thousand, six hundred thirty-nine".