26968881 has 4 divisors (see below), whose sum is σ = 35958512. Its totient is φ = 17979252.

The previous prime is 26968867. The next prime is 26968883. The reversal of 26968881 is 18886962.

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 not a de Polignac number, because 26968881 - 2¹⁵ = 26936113 is a prime.

It is a super-2 number, since 2×26968881² = 1454641084784322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26968881.

It is not an unprimeable number, because it can be changed into a prime (26968883) 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, 4494811 + ... + 4494816.

It is an arithmetic number, because the mean of its divisors is an integer number (8989628).

Almost surely, 2^26968881 is an apocalyptic number.

It is an amenable number.

26968881 is a deficient number, since it is larger than the sum of its proper divisors (8989631).

26968881 is an equidigital number, since it uses as much as digits as its factorization.

26968881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8989630.

The product of its digits is 331776, while the sum is 48.

The square root of 26968881 is about 5193.1571322270. The cubic root of 26968881 is about 299.8847001366.

The spelling of 26968881 in words is "twenty-six million, nine hundred sixty-eight thousand, eight hundred eighty-one".