20743083 has 6 divisors (see below), whose sum is σ = 29962244. Its totient is φ = 13828716.

The previous prime is 20743081. The next prime is 20743097. The reversal of 20743083 is 38034702.

It is not a de Polignac number, because 20743083 - 2¹ = 20743081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20743081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1152385 + ... + 1152402.

Almost surely, 2^20743083 is an apocalyptic number.

20743083 is a deficient number, since it is larger than the sum of its proper divisors (9219161).

20743083 is a wasteful number, since it uses less digits than its factorization.

20743083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304793 (or 2304790 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20743083 is about 4554.4574869023. The cubic root of 20743083 is about 274.7626955584.

Adding to 20743083 its reverse (38034702), we get a palindrome (58777785).

The spelling of 20743083 in words is "twenty million, seven hundred forty-three thousand, eighty-three".