3965003 has 4 divisors (see below), whose sum is σ = 4531440. Its totient is φ = 3398568.

The previous prime is 3964973. The next prime is 3965021. The reversal of 3965003 is 3005693.

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 3965003 - 2¹⁰ = 3963979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3965023) 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, 283208 + ... + 283221.

It is an arithmetic number, because the mean of its divisors is an integer number (1132860).

Almost surely, 2^3965003 is an apocalyptic number.

3965003 is a deficient number, since it is larger than the sum of its proper divisors (566437).

3965003 is an equidigital number, since it uses as much as digits as its factorization.

3965003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566436.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 3965003 is about 1991.2315284768. The cubic root of 3965003 is about 158.2757961453.

The spelling of 3965003 in words is "three million, nine hundred sixty-five thousand, three".