3687903 has 16 divisors (see below), whose sum is σ = 5508960. Its totient is φ = 2438208.

The previous prime is 3687869. The next prime is 3687911. The reversal of 3687903 is 3097863.

It is not a de Polignac number, because 3687903 - 2⁶ = 3687839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3687923) 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 15 ways as a sum of consecutive naturals, for example, 3201 + ... + 4197.

It is an arithmetic number, because the mean of its divisors is an integer number (344310).

Almost surely, 2^3687903 is an apocalyptic number.

3687903 is a deficient number, since it is larger than the sum of its proper divisors (1821057).

3687903 is a wasteful number, since it uses less digits than its factorization.

3687903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 3687903 is about 1920.3913663626. The cubic root of 3687903 is about 154.4992930498.

The spelling of 3687903 in words is "three million, six hundred eighty-seven thousand, nine hundred three".