26921101 has 2 divisors, whose sum is σ = 26921102. Its totient is φ = 26921100.

The previous prime is 26921087. The next prime is 26921107. The reversal of 26921101 is 10112962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22553001 + 4368100 = 4749^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 26921101 - 2⁷ = 26920973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26921107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13460550 + 13460551.

It is an arithmetic number, because the mean of its divisors is an integer number (13460551).

Almost surely, 2^26921101 is an apocalyptic number.

It is an amenable number.

26921101 is a deficient number, since it is larger than the sum of its proper divisors (1).

26921101 is an equidigital number, since it uses as much as digits as its factorization.

26921101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 26921101 is about 5188.5548084221. The cubic root of 26921101 is about 299.7074963796.

The spelling of 26921101 in words is "twenty-six million, nine hundred twenty-one thousand, one hundred one".