79941811 has 4 divisors (see below), whose sum is σ = 81067824. Its totient is φ = 78815800.

The previous prime is 79941809. The next prime is 79941863. The reversal of 79941811 is 11814997.

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

It is a cyclic number.

It is not a de Polignac number, because 79941811 - 2¹ = 79941809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79941881) 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, 562900 + ... + 563041.

It is an arithmetic number, because the mean of its divisors is an integer number (20266956).

Almost surely, 2^79941811 is an apocalyptic number.

79941811 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79941811 is a deficient number, since it is larger than the sum of its proper divisors (1126013).

79941811 is a wasteful number, since it uses less digits than its factorization.

79941811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126012.

The product of its digits is 18144, while the sum is 40.

The square root of 79941811 is about 8941.0184542926. The cubic root of 79941811 is about 430.7824423334.

The spelling of 79941811 in words is "seventy-nine million, nine hundred forty-one thousand, eight hundred eleven".