79997941 has 4 divisors (see below), whose sum is σ = 80016012. Its totient is φ = 79979872.

The previous prime is 79997927. The next prime is 79997947. The reversal of 79997941 is 14979997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14979997 = 439 ⋅34123.

It can be written as a sum of positive squares in 2 ways, for example, as 50339025 + 29658916 = 7095^2 + 5446^2 .

It is a cyclic number.

It is not a de Polignac number, because 79997941 - 2⁵ = 79997909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79997947) 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, 2601 + ... + 12913.

It is an arithmetic number, because the mean of its divisors is an integer number (20004003).

Almost surely, 2^79997941 is an apocalyptic number.

It is an amenable number.

79997941 is a deficient number, since it is larger than the sum of its proper divisors (18071).

79997941 is a wasteful number, since it uses less digits than its factorization.

79997941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18070.

The product of its digits is 1285956, while the sum is 55.

The square root of 79997941 is about 8944.1568076594. The cubic root of 79997941 is about 430.8832413238.

The spelling of 79997941 in words is "seventy-nine million, nine hundred ninety-seven thousand, nine hundred forty-one".