20797299 has 12 divisors (see below), whose sum is σ = 30086056. Its totient is φ = 13843872.

The previous prime is 20797277. The next prime is 20797339. The reversal of 20797299 is 99279702.

It is not a de Polignac number, because 20797299 - 2¹¹ = 20795251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20797199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6639 + ... + 9255.

Almost surely, 2^20797299 is an apocalyptic number.

20797299 is a deficient number, since it is larger than the sum of its proper divisors (9288757).

20797299 is a wasteful number, since it uses less digits than its factorization.

20797299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506 (or 3503 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 20797299 is about 4560.4055740690. The cubic root of 20797299 is about 275.0018688578.

The spelling of 20797299 in words is "twenty million, seven hundred ninety-seven thousand, two hundred ninety-nine".