20896313 has 4 divisors (see below), whose sum is σ = 20954880. Its totient is φ = 20837748.

The previous prime is 20896307. The next prime is 20896321. The reversal of 20896313 is 31369802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20896313 - 2¹⁰ = 20895289 is a prime.

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 20896313.

It is not an unprimeable number, because it can be changed into a prime (20896013) 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, 28745 + ... + 29462.

It is an arithmetic number, because the mean of its divisors is an integer number (5238720).

Almost surely, 2^20896313 is an apocalyptic number.

It is an amenable number.

20896313 is a deficient number, since it is larger than the sum of its proper divisors (58567).

20896313 is an equidigital number, since it uses as much as digits as its factorization.

20896313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58566.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20896313 is about 4571.2485165434. The cubic root of 20896313 is about 275.4375975125.

The spelling of 20896313 in words is "twenty million, eight hundred ninety-six thousand, three hundred thirteen".