7900859 has 2 divisors, whose sum is σ = 7900860. Its totient is φ = 7900858.

The previous prime is 7900829. The next prime is 7900873. The reversal of 7900859 is 9580097.

It is a strong prime.

It is an emirp because it is prime and its reverse (9580097) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7900859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7900829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3950429 + 3950430.

It is an arithmetic number, because the mean of its divisors is an integer number (3950430).

Almost surely, 2^7900859 is an apocalyptic number.

7900859 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900859 is an equidigital number, since it uses as much as digits as its factorization.

7900859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 7900859 is about 2810.8466695997. The cubic root of 7900859 is about 199.1703884818.

The spelling of 7900859 in words is "seven million, nine hundred thousand, eight hundred fifty-nine".