3766566 has 16 divisors (see below), whose sum is σ = 7593984. Its totient is φ = 1245384.

The previous prime is 3766559. The next prime is 3766573. The reversal of 3766566 is 6656673.

It is an interprime number because it is at equal distance from previous prime (3766559) and next prime (3766573).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1710 + ... + 3233.

It is an arithmetic number, because the mean of its divisors is an integer number (474624).

Almost surely, 2^3766566 is an apocalyptic number.

3766566 is an abundant number, since it is smaller than the sum of its proper divisors (3827418).

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

3766566 is a wasteful number, since it uses less digits than its factorization.

3766566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5075.

The product of its digits is 136080, while the sum is 39.

The square root of 3766566 is about 1940.7642824413. The cubic root of 3766566 is about 155.5900644149.

The spelling of 3766566 in words is "three million, seven hundred sixty-six thousand, five hundred sixty-six".