79205641 has 16 divisors (see below), whose sum is σ = 85130640. Its totient is φ = 73543680.

The previous prime is 79205617. The next prime is 79205653. The reversal of 79205641 is 14650297.

It can be written as a sum of positive squares in 8 ways, for example, as 1836025 + 77369616 = 1355^2 + 8796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79205641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79205597 and 79205606.

It is not an unprimeable number, because it can be changed into a prime (79205141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103701 + ... + 104461.

It is an arithmetic number, because the mean of its divisors is an integer number (5320665).

Almost surely, 2^79205641 is an apocalyptic number.

It is an amenable number.

79205641 is a deficient number, since it is larger than the sum of its proper divisors (5924999).

79205641 is a wasteful number, since it uses less digits than its factorization.

79205641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 79205641 is about 8899.7551089904. The cubic root of 79205641 is about 429.4560292854.

The spelling of 79205641 in words is "seventy-nine million, two hundred five thousand, six hundred forty-one".