3706664 has 32 divisors (see below), whose sum is σ = 7749000. Its totient is φ = 1650432.

The previous prime is 3706649. The next prime is 3706669. The reversal of 3706664 is 4666073.

It can be written as a sum of positive squares in 4 ways, for example, as 3496900 + 209764 = 1870^2 + 458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3706664.

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, 2402 + ... + 3630.

Almost surely, 2^3706664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3706664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3874500).

3706664 is an abundant number, since it is smaller than the sum of its proper divisors (4042336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3706664 is a wasteful number, since it uses less digits than its factorization.

3706664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 3706664 is about 1925.2698512157. The cubic root of 3706664 is about 154.7608382442.

The spelling of 3706664 in words is "three million, seven hundred six thousand, six hundred sixty-four".