7916851 has 2 divisors, whose sum is σ = 7916852. Its totient is φ = 7916850.

The previous prime is 7916833. The next prime is 7916861. The reversal of 7916851 is 1586197.

It is a strong prime.

It is an emirp because it is prime and its reverse (1586197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7916851 - 2²¹ = 5819699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7916851.

It is not a weakly prime, because it can be changed into another prime (7916861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958425 + 3958426.

It is an arithmetic number, because the mean of its divisors is an integer number (3958426).

Almost surely, 2^7916851 is an apocalyptic number.

7916851 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916851 is an equidigital number, since it uses as much as digits as its factorization.

7916851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 37.

The square root of 7916851 is about 2813.6899260580. The cubic root of 7916851 is about 199.3046770984.

The spelling of 7916851 in words is "seven million, nine hundred sixteen thousand, eight hundred fifty-one".