3745664 has 32 divisors (see below), whose sum is σ = 8039640. Its totient is φ = 1728000.

The previous prime is 3745663. The next prime is 3745691. The reversal of 3745664 is 4665473.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3745663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539 + ... + 2789.

Almost surely, 2^3745664 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 3745664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4019820).

3745664 is an abundant number, since it is smaller than the sum of its proper divisors (4293976).

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

3745664 is a wasteful number, since it uses less digits than its factorization.

3745664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278 (or 2266 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 3745664 is about 1935.3717989058. The cubic root of 3745664 is about 155.3017223810.

The spelling of 3745664 in words is "three million, seven hundred forty-five thousand, six hundred sixty-four".