3766865 has 4 divisors (see below), whose sum is σ = 4520244. Its totient is φ = 3013488.

The previous prime is 3766853. The next prime is 3766891. The reversal of 3766865 is 5686673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1106704 + 2660161 = 1052^2 + 1631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3766865 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 376682 + ... + 376691.

It is an arithmetic number, because the mean of its divisors is an integer number (1130061).

Almost surely, 2^3766865 is an apocalyptic number.

It is an amenable number.

3766865 is a deficient number, since it is larger than the sum of its proper divisors (753379).

3766865 is an equidigital number, since it uses as much as digits as its factorization.

3766865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753378.

The product of its digits is 181440, while the sum is 41.

The square root of 3766865 is about 1940.8413124210. The cubic root of 3766865 is about 155.5941813567.

The spelling of 3766865 in words is "three million, seven hundred sixty-six thousand, eight hundred sixty-five".