26359987 has 2 divisors, whose sum is σ = 26359988. Its totient is φ = 26359986.

The previous prime is 26359969. The next prime is 26360003. The reversal of 26359987 is 78995362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26359987 - 2²³ = 17971379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26359987.

It is not a weakly prime, because it can be changed into another prime (26359937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13179993 + 13179994.

It is an arithmetic number, because the mean of its divisors is an integer number (13179994).

Almost surely, 2^26359987 is an apocalyptic number.

26359987 is a deficient number, since it is larger than the sum of its proper divisors (1).

26359987 is an equidigital number, since it uses as much as digits as its factorization.

26359987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 26359987 is about 5134.1977951770. The cubic root of 26359987 is about 297.6106012514.

The spelling of 26359987 in words is "twenty-six million, three hundred fifty-nine thousand, nine hundred eighty-seven".