21832701 has 16 divisors (see below), whose sum is σ = 32616768. Its totient is φ = 12873600.

The previous prime is 21832673. The next prime is 21832703. The reversal of 21832701 is 10723812.

It is not a de Polignac number, because 21832701 - 2¹⁴ = 21816317 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21832703) 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, 7720 + ... + 10161.

It is an arithmetic number, because the mean of its divisors is an integer number (2038548).

Almost surely, 2^21832701 is an apocalyptic number.

It is an amenable number.

21832701 is a deficient number, since it is larger than the sum of its proper divisors (10784067).

21832701 is a wasteful number, since it uses less digits than its factorization.

21832701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17932.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 21832701 is about 4672.5475920530. The cubic root of 21832701 is about 279.4918547341.

Subtracting from 21832701 its reverse (10723812), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2183 and 2701, that added together give a palindrome (4884).

The spelling of 21832701 in words is "twenty-one million, eight hundred thirty-two thousand, seven hundred one".