7425839 has 2 divisors, whose sum is σ = 7425840. Its totient is φ = 7425838.

The previous prime is 7425829. The next prime is 7425841. The reversal of 7425839 is 9385247.

7425839 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7425839 is a prime.

Together with 7425841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7425809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3712919 + 3712920.

It is an arithmetic number, because the mean of its divisors is an integer number (3712920).

Almost surely, 2^7425839 is an apocalyptic number.

7425839 is a deficient number, since it is larger than the sum of its proper divisors (1).

7425839 is an equidigital number, since it uses as much as digits as its factorization.

7425839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 7425839 is about 2725.0392657721. The cubic root of 7425839 is about 195.0960648737.

The spelling of 7425839 in words is "seven million, four hundred twenty-five thousand, eight hundred thirty-nine".