7997959 has 2 divisors, whose sum is σ = 7997960. Its totient is φ = 7997958.

The previous prime is 7997947. The next prime is 7997971. The reversal of 7997959 is 9597997.

It is a balanced prime because it is at equal distance from previous prime (7997947) and next prime (7997971).

It is an emirp because it is prime and its reverse (9597997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7997959 - 2⁷ = 7997831 is a prime.

7997959 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7997989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3998979 + 3998980.

It is an arithmetic number, because the mean of its divisors is an integer number (3998980).

Almost surely, 2^7997959 is an apocalyptic number.

7997959 is a deficient number, since it is larger than the sum of its proper divisors (1).

7997959 is an equidigital number, since it uses as much as digits as its factorization.

7997959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1607445, while the sum is 55.

The square root of 7997959 is about 2828.0663004958. The cubic root of 7997959 is about 199.9829902200.

The spelling of 7997959 in words is "seven million, nine hundred ninety-seven thousand, nine hundred fifty-nine".