7984957 has 2 divisors, whose sum is σ = 7984958. Its totient is φ = 7984956.

The previous prime is 7984939. The next prime is 7985009. The reversal of 7984957 is 7594897.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4639716 + 3345241 = 2154^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 7984957 - 2⁷ = 7984829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7984957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7984357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992478 + 3992479.

It is an arithmetic number, because the mean of its divisors is an integer number (3992479).

Almost surely, 2^7984957 is an apocalyptic number.

It is an amenable number.

7984957 is a deficient number, since it is larger than the sum of its proper divisors (1).

7984957 is an equidigital number, since it uses as much as digits as its factorization.

7984957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 49.

The square root of 7984957 is about 2825.7666216445. The cubic root of 7984957 is about 199.8745630109.

The spelling of 7984957 in words is "seven million, nine hundred eighty-four thousand, nine hundred fifty-seven".