26968129 has 4 divisors (see below), whose sum is σ = 27003184. Its totient is φ = 26933076.

The previous prime is 26968127. The next prime is 26968159. The reversal of 26968129 is 92186962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26968129 - 2¹ = 26968127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26968127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16347 + ... + 17920.

It is an arithmetic number, because the mean of its divisors is an integer number (6750796).

Almost surely, 2^26968129 is an apocalyptic number.

It is an amenable number.

26968129 is a deficient number, since it is larger than the sum of its proper divisors (35055).

26968129 is an equidigital number, since it uses as much as digits as its factorization.

26968129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35054.

The product of its digits is 93312, while the sum is 43.

The square root of 26968129 is about 5193.0847287523. The cubic root of 26968129 is about 299.8819127834.

The spelling of 26968129 in words is "twenty-six million, nine hundred sixty-eight thousand, one hundred twenty-nine".