2061803 has 4 divisors (see below), whose sum is σ = 2086728. Its totient is φ = 2036880.

The previous prime is 2061793. The next prime is 2061847. The reversal of 2061803 is 3081602.

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 2061803 - 2²⁰ = 1013227 is a prime.

It is a super-2 number, since 2×2061803² = 8502063221618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061883) 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, 12338 + ... + 12503.

It is an arithmetic number, because the mean of its divisors is an integer number (521682).

2^2061803 is an apocalyptic number.

2061803 is a deficient number, since it is larger than the sum of its proper divisors (24925).

2061803 is an equidigital number, since it uses as much as digits as its factorization.

2061803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24924.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2061803 is about 1435.8979768772. The cubic root of 2061803 is about 127.2767437353.

The spelling of 2061803 in words is "two million, sixty-one thousand, eight hundred three".