26264921 has 4 divisors (see below), whose sum is σ = 26275200. Its totient is φ = 26254644.

The previous prime is 26264911. The next prime is 26264939. The reversal of 26264921 is 12946262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26264921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26264911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (6568800).

Almost surely, 2^26264921 is an apocalyptic number.

It is an amenable number.

26264921 is a deficient number, since it is larger than the sum of its proper divisors (10279).

26264921 is an equidigital number, since it uses as much as digits as its factorization.

26264921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10278.

The product of its digits is 10368, while the sum is 32.

The square root of 26264921 is about 5124.9313166129. The cubic root of 26264921 is about 297.2523976131.

The spelling of 26264921 in words is "twenty-six million, two hundred sixty-four thousand, nine hundred twenty-one".