3900663 has 16 divisors (see below), whose sum is σ = 6223840. Its totient is φ = 2400192.

The previous prime is 3900649. The next prime is 3900679. The reversal of 3900663 is 3660093.

It is not a de Polignac number, because 3900663 - 2¹⁰ = 3899639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5206 + ... + 5907.

It is an arithmetic number, because the mean of its divisors is an integer number (388990).

Almost surely, 2^3900663 is an apocalyptic number.

3900663 is a deficient number, since it is larger than the sum of its proper divisors (2323177).

3900663 is a wasteful number, since it uses less digits than its factorization.

3900663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11135 (or 11129 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 3900663 is about 1975.0096202297. The cubic root of 3900663 is about 157.4150108363.

The spelling of 3900663 in words is "three million, nine hundred thousand, six hundred sixty-three".