20350803 has 16 divisors (see below), whose sum is σ = 29702016. Its totient is φ = 12291840.

The previous prime is 20350789. The next prime is 20350807. The reversal of 20350803 is 30805302.

It is not a de Polignac number, because 20350803 - 2¹³ = 20342611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20350803.

It is not an unprimeable number, because it can be changed into a prime (20350807) 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 15 ways as a sum of consecutive naturals, for example, 10776 + ... + 12522.

It is an arithmetic number, because the mean of its divisors is an integer number (1856376).

Almost surely, 2^20350803 is an apocalyptic number.

20350803 is a deficient number, since it is larger than the sum of its proper divisors (9351213).

20350803 is a wasteful number, since it uses less digits than its factorization.

20350803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20350803 is about 4511.1864293110. The cubic root of 20350803 is about 273.0196151157.

The spelling of 20350803 in words is "twenty million, three hundred fifty thousand, eight hundred three".