26363997 has 24 divisors (see below), whose sum is σ = 41734368. Its totient is φ = 15904800.

The previous prime is 26363971. The next prime is 26364011. The reversal of 26363997 is 79936362.

26363997 is a `hidden beast` number, since 2 + 6 + 3 + 639 + 9 + 7 = 666.

It is not a de Polignac number, because 26363997 - 2⁸ = 26363741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26363927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27547 + ... + 28487.

It is an arithmetic number, because the mean of its divisors is an integer number (1738932).

Almost surely, 2^26363997 is an apocalyptic number.

It is an amenable number.

26363997 is a deficient number, since it is larger than the sum of its proper divisors (15370371).

26363997 is a wasteful number, since it uses less digits than its factorization.

26363997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1238 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 26363997 is about 5134.5882989778. The cubic root of 26363997 is about 297.6256917748.

The spelling of 26363997 in words is "twenty-six million, three hundred sixty-three thousand, nine hundred ninety-seven".