79090841 has 4 divisors (see below), whose sum is σ = 79125684. Its totient is φ = 79056000.

The previous prime is 79090819. The next prime is 79090849. The reversal of 79090841 is 14809097.

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 51423241 + 27667600 = 7171^2 + 5260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79090841 is a prime.

It is a super-2 number, since 2×79090841² = 12510722260174562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79090795 and 79090804.

It is not an unprimeable number, because it can be changed into a prime (79090849) 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, 13760 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (19781421).

Almost surely, 2^79090841 is an apocalyptic number.

It is an amenable number.

79090841 is a deficient number, since it is larger than the sum of its proper divisors (34843).

79090841 is a wasteful number, since it uses less digits than its factorization.

79090841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34842.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 79090841 is about 8893.3031546215. The cubic root of 79090841 is about 429.2484456259.

The spelling of 79090841 in words is "seventy-nine million, ninety thousand, eight hundred forty-one".