79911768 has 16 divisors (see below), whose sum is σ = 199779480. Its totient is φ = 26637248.

The previous prime is 79911763. The next prime is 79911803. The reversal of 79911768 is 86711997.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79911763) 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 in 3 ways as a sum of consecutive naturals, for example, 1664805 + ... + 1664852.

Almost surely, 2^79911768 is an apocalyptic number.

It is an amenable number.

79911768 is an abundant number, since it is smaller than the sum of its proper divisors (119867712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79911768 is a wasteful number, since it uses less digits than its factorization.

79911768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329666 (or 3329662 counting only the distinct ones).

The product of its digits is 190512, while the sum is 48.

The square root of 79911768 is about 8939.3382305403. The cubic root of 79911768 is about 430.7284713332.

The spelling of 79911768 in words is "seventy-nine million, nine hundred eleven thousand, seven hundred sixty-eight".