79121116 has 12 divisors (see below), whose sum is σ = 141408288. Its totient is φ = 38718752.

The previous prime is 79121101. The next prime is 79121117. The reversal of 79121116 is 61112197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79121117) 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, 210241 + ... + 210616.

It is an arithmetic number, because the mean of its divisors is an integer number (11784024).

Almost surely, 2^79121116 is an apocalyptic number.

It is an amenable number.

79121116 is a deficient number, since it is larger than the sum of its proper divisors (62287172).

79121116 is a wasteful number, since it uses less digits than its factorization.

79121116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420908 (or 420906 counting only the distinct ones).

The product of its digits is 756, while the sum is 28.

The square root of 79121116 is about 8895.0051152318. The cubic root of 79121116 is about 429.3032089786.

The spelling of 79121116 in words is "seventy-nine million, one hundred twenty-one thousand, one hundred sixteen".