21983295 has 16 divisors (see below), whose sum is σ = 37242720. Its totient is φ = 11034624.

The previous prime is 21983281. The next prime is 21983327. The reversal of 21983295 is 59238912.

It is not a de Polignac number, because 21983295 - 2⁶ = 21983231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42850 + ... + 43359.

It is an arithmetic number, because the mean of its divisors is an integer number (2327670).

Almost surely, 2^21983295 is an apocalyptic number.

21983295 is a deficient number, since it is larger than the sum of its proper divisors (15259425).

21983295 is a wasteful number, since it uses less digits than its factorization.

21983295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86234.

The product of its digits is 38880, while the sum is 39.

The square root of 21983295 is about 4688.6346626710. The cubic root of 21983295 is about 280.1329937937.

The spelling of 21983295 in words is "twenty-one million, nine hundred eighty-three thousand, two hundred ninety-five".