3787666 has 8 divisors (see below), whose sum is σ = 5704380. Its totient is φ = 1886208.

The previous prime is 3787657. The next prime is 3787687. The reversal of 3787666 is 6667873.

It can be written as a sum of positive squares in 2 ways, for example, as 2640625 + 1147041 = 1625^2 + 1071^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3171 + ... + 4198.

Almost surely, 2^3787666 is an apocalyptic number.

3787666 is a deficient number, since it is larger than the sum of its proper divisors (1916714).

3787666 is a wasteful number, since it uses less digits than its factorization.

3787666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628.

The product of its digits is 254016, while the sum is 43.

The square root of 3787666 is about 1946.1926934402. The cubic root of 3787666 is about 155.8800579256.

The spelling of 3787666 in words is "three million, seven hundred eighty-seven thousand, six hundred sixty-six".