21796411 has 8 divisors (see below), whose sum is σ = 26826464. Its totient is φ = 17245440.

The previous prime is 21796393. The next prime is 21796417. The reversal of 21796411 is 11469712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21796411 - 2⁷ = 21796283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21796417) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 119670 + ... + 119851.

It is an arithmetic number, because the mean of its divisors is an integer number (3353308).

Almost surely, 2^21796411 is an apocalyptic number.

21796411 is a deficient number, since it is larger than the sum of its proper divisors (5030053).

21796411 is a wasteful number, since it uses less digits than its factorization.

21796411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239541.

The product of its digits is 3024, while the sum is 31.

The square root of 21796411 is about 4668.6626564788. The cubic root of 21796411 is about 279.3369130815.

The spelling of 21796411 in words is "twenty-one million, seven hundred ninety-six thousand, four hundred eleven".