3706663 has 8 divisors (see below), whose sum is σ = 3942432. Its totient is φ = 3472896.

The previous prime is 3706649. The next prime is 3706669. The reversal of 3706663 is 3666073.

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

It is not a de Polignac number, because 3706663 - 2⁵ = 3706631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3706669) 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, 5406 + ... + 6052.

It is an arithmetic number, because the mean of its divisors is an integer number (492804).

Almost surely, 2^3706663 is an apocalyptic number.

3706663 is a deficient number, since it is larger than the sum of its proper divisors (235769).

3706663 is a wasteful number, since it uses less digits than its factorization.

3706663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 3706663 is about 1925.2695915118. The cubic root of 3706663 is about 154.7608243268.

It can be divided in two parts, 370 and 6663, that multiplied together give a triangular number (2465310 = T₂₂₂₀).

The spelling of 3706663 in words is "three million, seven hundred six thousand, six hundred sixty-three".