79501901 has 2 divisors, whose sum is σ = 79501902. Its totient is φ = 79501900.

The previous prime is 79501837. The next prime is 79501907. The reversal of 79501901 is 10910597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78234025 + 1267876 = 8845^2 + 1126^2 .

It is a cyclic number.

It is not a de Polignac number, because 79501901 - 2⁶ = 79501837 is a prime.

It is a super-2 number, since 2×79501901² = 12641104525227602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79501907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39750950 + 39750951.

It is an arithmetic number, because the mean of its divisors is an integer number (39750951).

Almost surely, 2^79501901 is an apocalyptic number.

It is an amenable number.

79501901 is a deficient number, since it is larger than the sum of its proper divisors (1).

79501901 is an equidigital number, since it uses as much as digits as its factorization.

79501901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 79501901 is about 8916.3838522127. The cubic root of 79501901 is about 429.9908074473.

The spelling of 79501901 in words is "seventy-nine million, five hundred one thousand, nine hundred one".