79956101 has 2 divisors, whose sum is σ = 79956102. Its totient is φ = 79956100.

The previous prime is 79956091. The next prime is 79956113. The reversal of 79956101 is 10165997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69722500 + 10233601 = 8350^2 + 3199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79956101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79956131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39978050 + 39978051.

It is an arithmetic number, because the mean of its divisors is an integer number (39978051).

Almost surely, 2^79956101 is an apocalyptic number.

It is an amenable number.

79956101 is a deficient number, since it is larger than the sum of its proper divisors (1).

79956101 is an equidigital number, since it uses as much as digits as its factorization.

79956101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 79956101 is about 8941.8175445488. The cubic root of 79956101 is about 430.8081089788.

The spelling of 79956101 in words is "seventy-nine million, nine hundred fifty-six thousand, one hundred one".