3723665 has 16 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 2670720.

The previous prime is 3723649. The next prime is 3723679. The reversal of 3723665 is 5663273.

It is not a de Polignac number, because 3723665 - 2⁴ = 3723649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3917 + ... + 4773.

It is an arithmetic number, because the mean of its divisors is an integer number (308880).

Almost surely, 2^3723665 is an apocalyptic number.

It is an amenable number.

3723665 is a deficient number, since it is larger than the sum of its proper divisors (1218415).

3723665 is a wasteful number, since it uses less digits than its factorization.

3723665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its digits is 22680, while the sum is 32.

The square root of 3723665 is about 1929.6800252892. The cubic root of 3723665 is about 154.9970863136.

The spelling of 3723665 in words is "three million, seven hundred twenty-three thousand, six hundred sixty-five".