7916399 has 2 divisors, whose sum is σ = 7916400. Its totient is φ = 7916398.

The previous prime is 7916357. The next prime is 7916413. The reversal of 7916399 is 9936197.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9936197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7916399 - 2⁸ = 7916143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7915399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958199 + 3958200.

It is an arithmetic number, because the mean of its divisors is an integer number (3958200).

Almost surely, 2^7916399 is an apocalyptic number.

7916399 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916399 is an equidigital number, since it uses as much as digits as its factorization.

7916399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 44.

The square root of 7916399 is about 2813.6096033387. The cubic root of 7916399 is about 199.3008840318.

The spelling of 7916399 in words is "seven million, nine hundred sixteen thousand, three hundred ninety-nine".