21296883 has 8 divisors (see below), whose sum is σ = 28555200. Its totient is φ = 14118248.

The previous prime is 21296879. The next prime is 21296909. The reversal of 21296883 is 38869212.

It is a happy number.

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 21296883 - 2² = 21296879 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21296083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19293 + ... + 20366.

It is an arithmetic number, because the mean of its divisors is an integer number (3569400).

Almost surely, 2^21296883 is an apocalyptic number.

21296883 is a deficient number, since it is larger than the sum of its proper divisors (7258317).

21296883 is a wasteful number, since it uses less digits than its factorization.

21296883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39841.

The product of its digits is 41472, while the sum is 39.

The square root of 21296883 is about 4614.8546022600. The cubic root of 21296883 is about 277.1864618822.

The spelling of 21296883 in words is "twenty-one million, two hundred ninety-six thousand, eight hundred eighty-three".