21914283 has 8 divisors (see below), whose sum is σ = 29242368. Its totient is φ = 14597864.

The previous prime is 21914257. The next prime is 21914317. The reversal of 21914283 is 38241912.

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 21914283 - 2⁵ = 21914251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21914283.

It is not an unprimeable number, because it can be changed into a prime (21914183) 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, 3466 + ... + 7472.

It is an arithmetic number, because the mean of its divisors is an integer number (3655296).

Almost surely, 2^21914283 is an apocalyptic number.

21914283 is a deficient number, since it is larger than the sum of its proper divisors (7328085).

21914283 is a wasteful number, since it uses less digits than its factorization.

21914283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833.

The product of its digits is 3456, while the sum is 30.

The square root of 21914283 is about 4681.2693791321. The cubic root of 21914283 is about 279.8395466756.

The spelling of 21914283 in words is "twenty-one million, nine hundred fourteen thousand, two hundred eighty-three".