21703341 has 16 divisors (see below), whose sum is σ = 32166720. Its totient is φ = 12904320.

The previous prime is 21703337. The next prime is 21703343. The reversal of 21703341 is 14330712.

It is not a de Polignac number, because 21703341 - 2² = 21703337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21703343) 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 15 ways as a sum of consecutive naturals, for example, 4456 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (2010420).

Almost surely, 2^21703341 is an apocalyptic number.

It is an amenable number.

21703341 is a deficient number, since it is larger than the sum of its proper divisors (10463379).

21703341 is a wasteful number, since it uses less digits than its factorization.

21703341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 21703341 is about 4658.6844709639. The cubic root of 21703341 is about 278.9387591848.

The spelling of 21703341 in words is "twenty-one million, seven hundred three thousand, three hundred forty-one".