26864964 has 72 divisors (see below), whose sum is σ = 82188288. Its totient is φ = 7223040.

The previous prime is 26864939. The next prime is 26864983. The reversal of 26864964 is 46946862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1149 + ... + 7419.

It is an arithmetic number, because the mean of its divisors is an integer number (1141504).

Almost surely, 2^26864964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26864964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41094144).

26864964 is an abundant number, since it is smaller than the sum of its proper divisors (55323324).

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

26864964 is a wasteful number, since it uses less digits than its factorization.

26864964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305 (or 6300 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 26864964 is about 5183.1422901557. The cubic root of 26864964 is about 299.4990305644.

The spelling of 26864964 in words is "twenty-six million, eight hundred sixty-four thousand, nine hundred sixty-four".