7970917 has 2 divisors, whose sum is σ = 7970918. Its totient is φ = 7970916.

The previous prime is 7970887. The next prime is 7970927. The reversal of 7970917 is 7190797.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7845601 + 125316 = 2801^2 + 354^2 .

It is a cyclic number.

It is not a de Polignac number, because 7970917 - 2¹⁵ = 7938149 is a prime.

7970917 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7970917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7970927) 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, 3985458 + 3985459.

It is an arithmetic number, because the mean of its divisors is an integer number (3985459).

Almost surely, 2^7970917 is an apocalyptic number.

It is an amenable number.

7970917 is a deficient number, since it is larger than the sum of its proper divisors (1).

7970917 is an equidigital number, since it uses as much as digits as its factorization.

7970917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27783, while the sum is 40.

The square root of 7970917 is about 2823.2812470599. The cubic root of 7970917 is about 199.7573473843.

The spelling of 7970917 in words is "seven million, nine hundred seventy thousand, nine hundred seventeen".