26672909 has 2 divisors, whose sum is σ = 26672910. Its totient is φ = 26672908.

The previous prime is 26672879. The next prime is 26672911. The reversal of 26672909 is 90927662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 8584900 = 4253^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 26672909 - 2²⁴ = 9895693 is a prime.

It is a super-2 number, since 2×26672909² = 1422888149044562, which contains 22 as substring.

Together with 26672911, 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 (26672929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13336454 + 13336455.

It is an arithmetic number, because the mean of its divisors is an integer number (13336455).

Almost surely, 2^26672909 is an apocalyptic number.

It is an amenable number.

26672909 is a deficient number, since it is larger than the sum of its proper divisors (1).

26672909 is an equidigital number, since it uses as much as digits as its factorization.

26672909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 26672909 is about 5164.5821709021. The cubic root of 26672909 is about 298.7836266369.

The spelling of 26672909 in words is "twenty-six million, six hundred seventy-two thousand, nine hundred nine".