2066403 has 8 divisors (see below), whose sum is σ = 2790400. Its totient is φ = 1360008.

The previous prime is 2066399. The next prime is 2066419. The reversal of 2066403 is 3046602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2066403 - 2² = 2066399 is a prime.

It is a Duffinian number.

2066403 is a lucky number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2066403.

It is not an unprimeable number, because it can be changed into a prime (2066443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4123 + ... + 4596.

It is an arithmetic number, because the mean of its divisors is an integer number (348800).

2^2066403 is an apocalyptic number.

2066403 is a deficient number, since it is larger than the sum of its proper divisors (723997).

2066403 is an equidigital number, since it uses as much as digits as its factorization.

2066403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2066403 is about 1437.4988695648. The cubic root of 2066403 is about 127.3713273194.

The spelling of 2066403 in words is "two million, sixty-six thousand, four hundred three".