79942811 has 8 divisors (see below), whose sum is σ = 87272640. Its totient is φ = 72781632.

The previous prime is 79942801. The next prime is 79942843. The reversal of 79942811 is 11824997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79942811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79942801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41171 + ... + 43068.

It is an arithmetic number, because the mean of its divisors is an integer number (10909080).

Almost surely, 2^79942811 is an apocalyptic number.

79942811 is a deficient number, since it is larger than the sum of its proper divisors (7329829).

79942811 is a wasteful number, since it uses less digits than its factorization.

79942811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84325.

The product of its digits is 36288, while the sum is 41.

The square root of 79942811 is about 8941.0743761586. The cubic root of 79942811 is about 430.7842385593.

The spelling of 79942811 in words is "seventy-nine million, nine hundred forty-two thousand, eight hundred eleven".