26887164 has 12 divisors (see below), whose sum is σ = 62736744. Its totient is φ = 8962384.

The previous prime is 26887163. The next prime is 26887171. The reversal of 26887164 is 46178862.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26887163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120287 + ... + 1120310.

It is an arithmetic number, because the mean of its divisors is an integer number (5228062).

Almost surely, 2^26887164 is an apocalyptic number.

It is an amenable number.

26887164 is an abundant number, since it is smaller than the sum of its proper divisors (35849580).

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

26887164 is a wasteful number, since it uses less digits than its factorization.

26887164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240604 (or 2240602 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 26887164 is about 5185.2834059480. The cubic root of 26887164 is about 299.5815053678.

The spelling of 26887164 in words is "twenty-six million, eight hundred eighty-seven thousand, one hundred sixty-four".