20797353 has 12 divisors (see below), whose sum is σ = 30155008. Its totient is φ = 13812120.

The previous prime is 20797351. The next prime is 20797363. The reversal of 20797353 is 35379702.

It is a happy number.

It is not a de Polignac number, because 20797353 - 2¹ = 20797351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20797351) 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, 1825 + ... + 6702.

Almost surely, 2^20797353 is an apocalyptic number.

It is an amenable number.

20797353 is a deficient number, since it is larger than the sum of its proper divisors (9357655).

20797353 is a wasteful number, since it uses less digits than its factorization.

20797353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804 (or 8801 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 20797353 is about 4560.4114945913. The cubic root of 20797353 is about 275.0021068709.

The spelling of 20797353 in words is "twenty million, seven hundred ninety-seven thousand, three hundred fifty-three".