26864688 has 40 divisors (see below), whose sum is σ = 69638400. Its totient is φ = 8924224.

The previous prime is 26864681. The next prime is 26864707. The reversal of 26864688 is 88646862.

It is a happy number.

It is a super-2 number, since 2×26864688² = 1443422922674688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26864681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16453 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (1740960).

Almost surely, 2^26864688 is an apocalyptic number.

It is an amenable number.

26864688 is an abundant number, since it is smaller than the sum of its proper divisors (42773712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26864688 is a wasteful number, since it uses less digits than its factorization.

26864688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1923 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 26864688 is about 5183.1156653117. The cubic root of 26864688 is about 299.4980049161.

The spelling of 26864688 in words is "twenty-six million, eight hundred sixty-four thousand, six hundred eighty-eight".