20471703 has 16 divisors (see below), whose sum is σ = 31362816. Its totient is φ = 11635200.

The previous prime is 20471699. The next prime is 20471713. The reversal of 20471703 is 30717402.

It is not a de Polignac number, because 20471703 - 2² = 20471699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20471713) 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, 1528 + ... + 6578.

It is an arithmetic number, because the mean of its divisors is an integer number (1960176).

Almost surely, 2^20471703 is an apocalyptic number.

20471703 is a deficient number, since it is larger than the sum of its proper divisors (10891113).

20471703 is a wasteful number, since it uses less digits than its factorization.

20471703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20471703 is about 4524.5666090798. The cubic root of 20471703 is about 273.5591994193.

The spelling of 20471703 in words is "twenty million, four hundred seventy-one thousand, seven hundred three".