79901 has 2 divisors, whose sum is σ = 79902. Its totient is φ = 79900.

The previous prime is 79889. The next prime is 79903. The reversal of 79901 is 10997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63001 + 16900 = 251^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 79901 - 2¹⁰ = 78877 is a prime.

Together with 79903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39950 + 39951.

It is an arithmetic number, because the mean of its divisors is an integer number (39951).

2⁷⁹⁹⁰¹ is an apocalyptic number.

It is an amenable number.

79901 is a deficient number, since it is larger than the sum of its proper divisors (1).

79901 is an equidigital number, since it uses as much as digits as its factorization.

79901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 79901 is about 282.6676493694. The cubic root of 79901 is about 43.0709123776.

The spelling of 79901 in words is "seventy-nine thousand, nine hundred one".