26882981 has 2 divisors, whose sum is σ = 26882982. Its totient is φ = 26882980.

The previous prime is 26882969. The next prime is 26882987. The reversal of 26882981 is 18928862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14945956 + 11937025 = 3866^2 + 3455^2 .

It is a cyclic number.

It is not a de Polignac number, because 26882981 - 2¹⁴ = 26866597 is a prime.

It is a super-2 number, since 2×26882981² = 1445389334892722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26882987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13441490 + 13441491.

It is an arithmetic number, because the mean of its divisors is an integer number (13441491).

Almost surely, 2^26882981 is an apocalyptic number.

It is an amenable number.

26882981 is a deficient number, since it is larger than the sum of its proper divisors (1).

26882981 is an equidigital number, since it uses as much as digits as its factorization.

26882981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 44.

The square root of 26882981 is about 5184.8800371850. The cubic root of 26882981 is about 299.5659686551.

The spelling of 26882981 in words is "twenty-six million, eight hundred eighty-two thousand, nine hundred eighty-one".