26276381 has 2 divisors, whose sum is σ = 26276382. Its totient is φ = 26276380.

The previous prime is 26276363. The next prime is 26276387. The reversal of 26276381 is 18367262.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 12888100 = 3659^2 + 3590^2 .

It is a cyclic number.

It is not a de Polignac number, because 26276381 - 2¹⁰ = 26275357 is a prime.

It is a super-2 number, since 2×26276381² = 1380896396914322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26276387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13138190 + 13138191.

It is an arithmetic number, because the mean of its divisors is an integer number (13138191).

Almost surely, 2^26276381 is an apocalyptic number.

It is an amenable number.

26276381 is a deficient number, since it is larger than the sum of its proper divisors (1).

26276381 is an equidigital number, since it uses as much as digits as its factorization.

26276381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 26276381 is about 5126.0492584446. The cubic root of 26276381 is about 297.2956240538.

The spelling of 26276381 in words is "twenty-six million, two hundred seventy-six thousand, three hundred eighty-one".