3537666 has 48 divisors (see below), whose sum is σ = 8862048. Its totient is φ = 1008000.

The previous prime is 3537659. The next prime is 3537673. The reversal of 3537666 is 6667353.

It is an interprime number because it is at equal distance from previous prime (3537659) and next prime (3537673).

It is a self number, because there is not a number n which added to its sum of digits gives 3537666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2841 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (184626).

Almost surely, 2^3537666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3537666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4431024).

3537666 is an abundant number, since it is smaller than the sum of its proper divisors (5324382).

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

3537666 is a wasteful number, since it uses less digits than its factorization.

3537666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1084 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 3537666 is about 1880.8684164502. The cubic root of 3537666 is about 152.3721547903.

The spelling of 3537666 in words is "three million, five hundred thirty-seven thousand, six hundred sixty-six".