20237933 has 2 divisors, whose sum is σ = 20237934. Its totient is φ = 20237932.

The previous prime is 20237923. The next prime is 20237951. The reversal of 20237933 is 33973202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20232004 + 5929 = 4498^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 20237933 - 2¹⁴ = 20221549 is a prime.

It is a super-2 number, since 2×20237933² = 819147864224978, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20237896 and 20237905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20237923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10118966 + 10118967.

It is an arithmetic number, because the mean of its divisors is an integer number (10118967).

Almost surely, 2^20237933 is an apocalyptic number.

It is an amenable number.

20237933 is a deficient number, since it is larger than the sum of its proper divisors (1).

20237933 is an equidigital number, since it uses as much as digits as its factorization.

20237933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 20237933 is about 4498.6590224199. The cubic root of 20237933 is about 272.5139369468.

The spelling of 20237933 in words is "twenty million, two hundred thirty-seven thousand, nine hundred thirty-three".