79011121 has 8 divisors (see below), whose sum is σ = 95610240. Its totient is φ = 63739968.

The previous prime is 79011113. The next prime is 79011131. The reversal of 79011121 is 12111097.

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

It is a cyclic number.

It is not a de Polignac number, because 79011121 - 2³ = 79011113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79011092 and 79011101.

It is not an unprimeable number, because it can be changed into a prime (79011131) 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, 331861 + ... + 332098.

It is an arithmetic number, because the mean of its divisors is an integer number (11951280).

Almost surely, 2^79011121 is an apocalyptic number.

It is an amenable number.

79011121 is a deficient number, since it is larger than the sum of its proper divisors (16599119).

79011121 is a wasteful number, since it uses less digits than its factorization.

79011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663983.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 79011121 is about 8888.8200004275. The cubic root of 79011121 is about 429.1041761193.

It can be divided in two parts, 790 and 11121, that added together give a palindrome (11911).

The spelling of 79011121 in words is "seventy-nine million, eleven thousand, one hundred twenty-one".