79761113 has 4 divisors (see below), whose sum is σ = 81706548. Its totient is φ = 77815680.

The previous prime is 79761067. The next prime is 79761137. The reversal of 79761113 is 31116797.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12652249 + 67108864 = 3557^2 + 8192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79761113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79761313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972656 + ... + 972737.

It is an arithmetic number, because the mean of its divisors is an integer number (20426637).

Almost surely, 2^79761113 is an apocalyptic number.

It is an amenable number.

79761113 is a deficient number, since it is larger than the sum of its proper divisors (1945435).

79761113 is a wasteful number, since it uses less digits than its factorization.

79761113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945434.

The product of its digits is 7938, while the sum is 35.

The square root of 79761113 is about 8930.9077366189. The cubic root of 79761113 is about 430.4576216972.

Subtracting from 79761113 its reverse (31116797), we obtain a triangular number (48644316 = T₉₈₆₃).

The spelling of 79761113 in words is "seventy-nine million, seven hundred sixty-one thousand, one hundred thirteen".