79880651 has 2 divisors, whose sum is σ = 79880652. Its totient is φ = 79880650.

The previous prime is 79880641. The next prime is 79880681. The reversal of 79880651 is 15608897.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79880651 - 2¹⁰ = 79879627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79880621) 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, 39940325 + 39940326.

It is an arithmetic number, because the mean of its divisors is an integer number (39940326).

Almost surely, 2^79880651 is an apocalyptic number.

79880651 is a deficient number, since it is larger than the sum of its proper divisors (1).

79880651 is an equidigital number, since it uses as much as digits as its factorization.

79880651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 79880651 is about 8937.5976078586. The cubic root of 79880651 is about 430.6725566737.

The spelling of 79880651 in words is "seventy-nine million, eight hundred eighty thousand, six hundred fifty-one".