21214883 has 8 divisors (see below), whose sum is σ = 21582288. Its totient is φ = 20850304.

The previous prime is 21214877. The next prime is 21214889. The reversal of 21214883 is 38841212.

It is an interprime number because it is at equal distance from previous prime (21214877) and next prime (21214889).

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 21214883 - 2¹⁰ = 21213859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214889) 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, 18791 + ... + 19887.

It is an arithmetic number, because the mean of its divisors is an integer number (2697786).

Almost surely, 2^21214883 is an apocalyptic number.

21214883 is a deficient number, since it is larger than the sum of its proper divisors (367405).

21214883 is a wasteful number, since it uses less digits than its factorization.

21214883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its digits is 3072, while the sum is 29.

The square root of 21214883 is about 4605.9616802574. The cubic root of 21214883 is about 276.8302513172.

The spelling of 21214883 in words is "twenty-one million, two hundred fourteen thousand, eight hundred eighty-three".