26327664 has 90 divisors (see below), whose sum is σ = 81041688. Its totient is φ = 7972800.

The previous prime is 26327647. The next prime is 26327681. The reversal of 26327664 is 46672362.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26327647) and next prime (26327681).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16669 + ... + 18179.

Almost surely, 2^26327664 is an apocalyptic number.

26327664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26327664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40520844).

26327664 is an abundant number, since it is smaller than the sum of its proper divisors (54714024).

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

26327664 is a wasteful number, since it uses less digits than its factorization.

26327664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1527 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 26327664 is about 5131.0490155523. The cubic root of 26327664 is about 297.4889066786.

It can be divided in two parts, 2632 and 7664, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 26327664 in words is "twenty-six million, three hundred twenty-seven thousand, six hundred sixty-four".