3866788 has 12 divisors (see below), whose sum is σ = 6785100. Its totient is φ = 1928192.

The previous prime is 3866777. The next prime is 3866791. The reversal of 3866788 is 8876683.

It can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 2683044 = 1088^2 + 1638^2 .

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, 720 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (565425).

Almost surely, 2^3866788 is an apocalyptic number.

It is an amenable number.

3866788 is a deficient number, since it is larger than the sum of its proper divisors (2918312).

3866788 is a wasteful number, since it uses less digits than its factorization.

3866788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606 (or 2604 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 3866788 is about 1966.4150121477. The cubic root of 3866788 is about 156.9579992319.

The spelling of 3866788 in words is "three million, eight hundred sixty-six thousand, seven hundred eighty-eight".