20743933 has 8 divisors (see below), whose sum is σ = 23767040. Its totient is φ = 17735760.

The previous prime is 20743901. The next prime is 20743949. The reversal of 20743933 is 33934702.

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

It is not a de Polignac number, because 20743933 - 2⁵ = 20743901 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 20743895 and 20743904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20743973) 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, 573 + ... + 6466.

It is an arithmetic number, because the mean of its divisors is an integer number (2970880).

Almost surely, 2^20743933 is an apocalyptic number.

It is an amenable number.

20743933 is a deficient number, since it is larger than the sum of its proper divisors (3023107).

20743933 is an equidigital number, since it uses as much as digits as its factorization.

20743933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 20743933 is about 4554.5508011219. The cubic root of 20743933 is about 274.7664485380.

The spelling of 20743933 in words is "twenty million, seven hundred forty-three thousand, nine hundred thirty-three".