26442587 has 2 divisors, whose sum is σ = 26442588. Its totient is φ = 26442586.

The previous prime is 26442557. The next prime is 26442629. The reversal of 26442587 is 78524462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26442587 - 2⁸ = 26442331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26442587.

It is not a weakly prime, because it can be changed into another prime (26442517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13221293 + 13221294.

It is an arithmetic number, because the mean of its divisors is an integer number (13221294).

Almost surely, 2^26442587 is an apocalyptic number.

26442587 is a deficient number, since it is larger than the sum of its proper divisors (1).

26442587 is an equidigital number, since it uses as much as digits as its factorization.

26442587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The square root of 26442587 is about 5142.2356033150. The cubic root of 26442587 is about 297.9211350844.

The spelling of 26442587 in words is "twenty-six million, four hundred forty-two thousand, five hundred eighty-seven".