26497487 has 2 divisors, whose sum is σ = 26497488. Its totient is φ = 26497486.

The previous prime is 26497481. The next prime is 26497531. The reversal of 26497487 is 78479462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26497487 - 2⁸ = 26497231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26497481) 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, 13248743 + 13248744.

It is an arithmetic number, because the mean of its divisors is an integer number (13248744).

Almost surely, 2^26497487 is an apocalyptic number.

26497487 is a deficient number, since it is larger than the sum of its proper divisors (1).

26497487 is an equidigital number, since it uses as much as digits as its factorization.

26497487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The square root of 26497487 is about 5147.5709805694. The cubic root of 26497487 is about 298.1271734727.

The spelling of 26497487 in words is "twenty-six million, four hundred ninety-seven thousand, four hundred eighty-seven".