21794325 has 24 divisors (see below), whose sum is σ = 41181888. Its totient is φ = 9962880.

The previous prime is 21794299. The next prime is 21794347. The reversal of 21794325 is 52349712.

It is not a de Polignac number, because 21794325 - 2⁶ = 21794261 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 20232 + ... + 21281.

It is an arithmetic number, because the mean of its divisors is an integer number (1715912).

Almost surely, 2^21794325 is an apocalyptic number.

21794325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21794325 is a deficient number, since it is larger than the sum of its proper divisors (19387563).

21794325 is a wasteful number, since it uses less digits than its factorization.

21794325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41533 (or 41528 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 21794325 is about 4668.4392466862. The cubic root of 21794325 is about 279.3280015931.

The spelling of 21794325 in words is "twenty-one million, seven hundred ninety-four thousand, three hundred twenty-five".