26476981 has 2 divisors, whose sum is σ = 26476982. Its totient is φ = 26476980.

The previous prime is 26476969. The next prime is 26476987. The reversal of 26476981 is 18967462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26357956 + 119025 = 5134^2 + 345^2 .

It is a cyclic number.

It is not a de Polignac number, because 26476981 - 2⁹ = 26476469 is a prime.

It is a super-2 number, since 2×26476981² = 1402061045748722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26476987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13238490 + 13238491.

It is an arithmetic number, because the mean of its divisors is an integer number (13238491).

Almost surely, 2^26476981 is an apocalyptic number.

It is an amenable number.

26476981 is a deficient number, since it is larger than the sum of its proper divisors (1).

26476981 is an equidigital number, since it uses as much as digits as its factorization.

26476981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 26476981 is about 5145.5787818281. The cubic root of 26476981 is about 298.0502482719.

The spelling of 26476981 in words is "twenty-six million, four hundred seventy-six thousand, nine hundred eighty-one".