20893363 has 4 divisors (see below), whose sum is σ = 20915080. Its totient is φ = 20871648.

The previous prime is 20893339. The next prime is 20893387. The reversal of 20893363 is 36339802.

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

It is an interprime number because it is at equal distance from previous prime (20893339) and next prime (20893387).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20893363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20893393) 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, 9345 + ... + 11362.

It is an arithmetic number, because the mean of its divisors is an integer number (5228770).

Almost surely, 2^20893363 is an apocalyptic number.

20893363 is a deficient number, since it is larger than the sum of its proper divisors (21717).

20893363 is a wasteful number, since it uses less digits than its factorization.

20893363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21716.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 20893363 is about 4570.9258361956. The cubic root of 20893363 is about 275.4246354307.

The spelling of 20893363 in words is "twenty million, eight hundred ninety-three thousand, three hundred sixty-three".