20345703 has 16 divisors (see below), whose sum is σ = 32004096. Its totient is φ = 11250720.

The previous prime is 20345687. The next prime is 20345723. The reversal of 20345703 is 30754302.

It is not a de Polignac number, because 20345703 - 2⁴ = 20345687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14976 + ... + 16277.

It is an arithmetic number, because the mean of its divisors is an integer number (2000256).

Almost surely, 2^20345703 is an apocalyptic number.

20345703 is a deficient number, since it is larger than the sum of its proper divisors (11658393).

20345703 is a wasteful number, since it uses less digits than its factorization.

20345703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31294.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20345703 is about 4510.6211323941. The cubic root of 20345703 is about 272.9968065748.

The spelling of 20345703 in words is "twenty million, three hundred forty-five thousand, seven hundred three".