79968487 has 2 divisors, whose sum is σ = 79968488. Its totient is φ = 79968486.

The previous prime is 79968463. The next prime is 79968521. The reversal of 79968487 is 78486997.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79968487 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 (79968887) 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, 39984243 + 39984244.

It is an arithmetic number, because the mean of its divisors is an integer number (39984244).

Almost surely, 2^79968487 is an apocalyptic number.

79968487 is a deficient number, since it is larger than the sum of its proper divisors (1).

79968487 is an equidigital number, since it uses as much as digits as its factorization.

79968487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 58.

The square root of 79968487 is about 8942.5101062286. The cubic root of 79968487 is about 430.8303533256.

The spelling of 79968487 in words is "seventy-nine million, nine hundred sixty-eight thousand, four hundred eighty-seven".