3945303 has 12 divisors (see below), whose sum is σ = 5722600. Its totient is φ = 2619216.

The previous prime is 3945301. The next prime is 3945313. The reversal of 3945303 is 3035493.

It is not a de Polignac number, because 3945303 - 2¹ = 3945301 is a prime.

It is a Duffinian number.

3945303 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945301) 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 11 ways as a sum of consecutive naturals, for example, 1773 + ... + 3321.

Almost surely, 2^3945303 is an apocalyptic number.

3945303 is a deficient number, since it is larger than the sum of its proper divisors (1777297).

3945303 is a wasteful number, since it uses less digits than its factorization.

3945303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 3945303 is about 1986.2786813537. The cubic root of 3945303 is about 158.0132312799.

The spelling of 3945303 in words is "three million, nine hundred forty-five thousand, three hundred three".