20795743 has 4 divisors (see below), whose sum is σ = 22019040. Its totient is φ = 19572448.

The previous prime is 20795717. The next prime is 20795759. The reversal of 20795743 is 34759702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20795743 - 2⁹ = 20795231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20795773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611623 + ... + 611656.

It is an arithmetic number, because the mean of its divisors is an integer number (5504760).

Almost surely, 2^20795743 is an apocalyptic number.

20795743 is a deficient number, since it is larger than the sum of its proper divisors (1223297).

20795743 is a wasteful number, since it uses less digits than its factorization.

20795743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223296.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 20795743 is about 4560.2349720162. The cubic root of 20795743 is about 274.9950103778.

The spelling of 20795743 in words is "twenty million, seven hundred ninety-five thousand, seven hundred forty-three".