26986647 has 16 divisors (see below), whose sum is σ = 37283840. Its totient is φ = 17344800.

The previous prime is 26986621. The next prime is 26986649. The reversal of 26986647 is 74668962.

It is not a de Polignac number, because 26986647 - 2⁸ = 26986391 is a prime.

It is a Duffinian number.

Its product of digits (870912) is a multiple of the sum of its prime divisors (1134).

It is a junction number, because it is equal to n+sod(n) for n = 26986596 and 26986605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26986649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40497 + ... + 41157.

It is an arithmetic number, because the mean of its divisors is an integer number (2330240).

Almost surely, 2^26986647 is an apocalyptic number.

26986647 is a deficient number, since it is larger than the sum of its proper divisors (10297193).

26986647 is a wasteful number, since it uses less digits than its factorization.

26986647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134.

The product of its digits is 870912, while the sum is 48.

The square root of 26986647 is about 5194.8673707805. The cubic root of 26986647 is about 299.9505362894.

The spelling of 26986647 in words is "twenty-six million, nine hundred eighty-six thousand, six hundred forty-seven".