79038961 has 8 divisors (see below), whose sum is σ = 79712424. Its totient is φ = 78368640.

The previous prime is 79038943. The next prime is 79038977. The reversal of 79038961 is 16983097.

It can be written as a sum of positive squares in 4 ways, for example, as 7535025 + 71503936 = 2745^2 + 8456^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79038961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79038901) 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 7 ways as a sum of consecutive naturals, for example, 82461 + ... + 83413.

It is an arithmetic number, because the mean of its divisors is an integer number (9964053).

Almost surely, 2^79038961 is an apocalyptic number.

It is an amenable number.

79038961 is a deficient number, since it is larger than the sum of its proper divisors (673463).

79038961 is a wasteful number, since it uses less digits than its factorization.

79038961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 79038961 is about 8890.3858746401. The cubic root of 79038961 is about 429.1545692676.

The spelling of 79038961 in words is "seventy-nine million, thirty-eight thousand, nine hundred sixty-one".