79680841 has 2 divisors, whose sum is σ = 79680842. Its totient is φ = 79680840.

The previous prime is 79680781. The next prime is 79680863. The reversal of 79680841 is 14808697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50466816 + 29214025 = 7104^2 + 5405^2 .

It is a cyclic number.

It is not a de Polignac number, because 79680841 - 2⁹ = 79680329 is a prime.

It is not a weakly prime, because it can be changed into another prime (79680871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39840420 + 39840421.

It is an arithmetic number, because the mean of its divisors is an integer number (39840421).

Almost surely, 2^79680841 is an apocalyptic number.

It is an amenable number.

79680841 is a deficient number, since it is larger than the sum of its proper divisors (1).

79680841 is an equidigital number, since it uses as much as digits as its factorization.

79680841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 79680841 is about 8926.4125492832. The cubic root of 79680841 is about 430.3131682952.

The spelling of 79680841 in words is "seventy-nine million, six hundred eighty thousand, eight hundred forty-one".