20898363 has 8 divisors (see below), whose sum is σ = 27915088. Its totient is φ = 13906944.

The previous prime is 20898349. The next prime is 20898379. The reversal of 20898363 is 36389802.

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

It is not a de Polignac number, because 20898363 - 2¹² = 20894267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20898323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4306 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (3489386).

Almost surely, 2^20898363 is an apocalyptic number.

20898363 is a deficient number, since it is larger than the sum of its proper divisors (7016725).

20898363 is a wasteful number, since it uses less digits than its factorization.

20898363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12653.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 20898363 is about 4571.4727386259. The cubic root of 20898363 is about 275.4466043424.

The spelling of 20898363 in words is "twenty million, eight hundred ninety-eight thousand, three hundred sixty-three".