3903745 has 8 divisors (see below), whose sum is σ = 4712616. Its totient is φ = 3104256.

The previous prime is 3903703. The next prime is 3903749. The reversal of 3903745 is 5473093.

It can be written as a sum of positive squares in 4 ways, for example, as 124609 + 3779136 = 353^2 + 1944^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3903745 - 2⁹ = 3903233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3903749) 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, 1392 + ... + 3121.

It is an arithmetic number, because the mean of its divisors is an integer number (589077).

Almost surely, 2^3903745 is an apocalyptic number.

It is an amenable number.

3903745 is a deficient number, since it is larger than the sum of its proper divisors (808871).

3903745 is a wasteful number, since it uses less digits than its factorization.

3903745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 3903745 is about 1975.7897155315. The cubic root of 3903745 is about 157.4564589476.

The spelling of 3903745 in words is "three million, nine hundred three thousand, seven hundred forty-five".