21296411 has 8 divisors (see below), whose sum is σ = 22742400. Its totient is φ = 19897920.

The previous prime is 21296399. The next prime is 21296417. The reversal of 21296411 is 11469212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21296411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21296417) 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 7 ways as a sum of consecutive naturals, for example, 10946 + ... + 12743.

It is an arithmetic number, because the mean of its divisors is an integer number (2842800).

Almost surely, 2^21296411 is an apocalyptic number.

21296411 is a deficient number, since it is larger than the sum of its proper divisors (1445989).

21296411 is a wasteful number, since it uses less digits than its factorization.

21296411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23749.

The product of its digits is 864, while the sum is 26.

The square root of 21296411 is about 4614.8034627707. The cubic root of 21296411 is about 277.1844141181.

The spelling of 21296411 in words is "twenty-one million, two hundred ninety-six thousand, four hundred eleven".