20833713 has 8 divisors (see below), whose sum is σ = 30864800. Its totient is φ = 13889124.

The previous prime is 20833693. The next prime is 20833723. The reversal of 20833713 is 31733802.

It is not a de Polignac number, because 20833713 - 2⁹ = 20833201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 771619 = 20833713 / (2 + 0 + 8 + 3 + 3 + 7 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20833723) 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, 385783 + ... + 385836.

It is an arithmetic number, because the mean of its divisors is an integer number (3858100).

Almost surely, 2^20833713 is an apocalyptic number.

It is an amenable number.

20833713 is a deficient number, since it is larger than the sum of its proper divisors (10031087).

20833713 is an equidigital number, since it uses as much as digits as its factorization.

20833713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771628 (or 771622 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20833713 is about 4564.3962360864. The cubic root of 20833713 is about 275.1622755733.

The spelling of 20833713 in words is "twenty million, eight hundred thirty-three thousand, seven hundred thirteen".