21882795 has 16 divisors (see below), whose sum is σ = 38195712. Its totient is φ = 10609760.

The previous prime is 21882793. The next prime is 21882797. The reversal of 21882795 is 59728812.

It is an interprime number because it is at equal distance from previous prime (21882793) and next prime (21882797).

It is not a de Polignac number, because 21882795 - 2¹ = 21882793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21882793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66147 + ... + 66476.

It is an arithmetic number, because the mean of its divisors is an integer number (2387232).

Almost surely, 2^21882795 is an apocalyptic number.

21882795 is a deficient number, since it is larger than the sum of its proper divisors (16312917).

21882795 is a wasteful number, since it uses less digits than its factorization.

21882795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132642.

The product of its digits is 80640, while the sum is 42.

The square root of 21882795 is about 4677.9049797960. The cubic root of 21882795 is about 279.7054513097.

The spelling of 21882795 in words is "twenty-one million, eight hundred eighty-two thousand, seven hundred ninety-five".