3820003 has 8 divisors (see below), whose sum is σ = 4236336. Its totient is φ = 3415200.

The previous prime is 3819997. The next prime is 3820009. The reversal of 3820003 is 3000283.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3819997) and next prime (3820009).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3820003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3820009) 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, 2176 + ... + 3517.

It is an arithmetic number, because the mean of its divisors is an integer number (529542).

Almost surely, 2^3820003 is an apocalyptic number.

3820003 is a deficient number, since it is larger than the sum of its proper divisors (416333).

3820003 is a wasteful number, since it uses less digits than its factorization.

3820003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3820003 is about 1954.4827960358. The cubic root of 3820003 is about 156.3224074007.

Adding to 3820003 its reverse (3000283), we get a palindrome (6820286).

The spelling of 3820003 in words is "three million, eight hundred twenty thousand, three".