916780679 has 2 divisors, whose sum is σ = 916780680. Its totient is φ = 916780678.

The previous prime is 916780603. The next prime is 916780681. The reversal of 916780679 is 976087619.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916780679 is a prime.

Together with 916780681, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 916780679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916780699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458390339 + 458390340.

It is an arithmetic number, because the mean of its divisors is an integer number (458390340).

Almost surely, 2^916780679 is an apocalyptic number.

916780679 is a deficient number, since it is larger than the sum of its proper divisors (1).

916780679 is an equidigital number, since it uses as much as digits as its factorization.

916780679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 916780679 is about 30278.3863341493. The cubic root of 916780679 is about 971.4530527042.

The spelling of 916780679 in words is "nine hundred sixteen million, seven hundred eighty thousand, six hundred seventy-nine".