21096363 has 4 divisors (see below), whose sum is σ = 28128488. Its totient is φ = 14064240.

The previous prime is 21096349. The next prime is 21096367. The reversal of 21096363 is 36369012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21096363 - 2⁴ = 21096347 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21096363.

It is not an unprimeable number, because it can be changed into a prime (21096367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3516058 + ... + 3516063.

It is an arithmetic number, because the mean of its divisors is an integer number (7032122).

Almost surely, 2^21096363 is an apocalyptic number.

21096363 is a deficient number, since it is larger than the sum of its proper divisors (7032125).

21096363 is an equidigital number, since it uses as much as digits as its factorization.

21096363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032124.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 21096363 is about 4593.0777263182. The cubic root of 21096363 is about 276.3137709632.

The spelling of 21096363 in words is "twenty-one million, ninety-six thousand, three hundred sixty-three".