26793881 has 2 divisors, whose sum is σ = 26793882. Its totient is φ = 26793880.

The previous prime is 26793863. The next prime is 26793911. The reversal of 26793881 is 18839762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25603600 + 1190281 = 5060^2 + 1091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26793881 is a prime.

It is a super-2 number, since 2×26793881² = 1435824118084322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26793281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13396940 + 13396941.

It is an arithmetic number, because the mean of its divisors is an integer number (13396941).

Almost surely, 2^26793881 is an apocalyptic number.

It is an amenable number.

26793881 is a deficient number, since it is larger than the sum of its proper divisors (1).

26793881 is an equidigital number, since it uses as much as digits as its factorization.

26793881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 26793881 is about 5176.2806144953. The cubic root of 26793881 is about 299.2346453979.

The spelling of 26793881 in words is "twenty-six million, seven hundred ninety-three thousand, eight hundred eighty-one".