5816665 has 4 divisors (see below), whose sum is σ = 6980004. Its totient is φ = 4653328.

The previous prime is 5816651. The next prime is 5816683. The reversal of 5816665 is 5666185.

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 870489 + 4946176 = 933^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 5816665 - 2¹⁹ = 5292377 is a prime.

It is a Duffinian number.

5816665 is a lucky 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, 581662 + ... + 581671.

It is an arithmetic number, because the mean of its divisors is an integer number (1745001).

Almost surely, 2^5816665 is an apocalyptic number.

It is an amenable number.

5816665 is a deficient number, since it is larger than the sum of its proper divisors (1163339).

5816665 is a wasteful number, since it uses less digits than its factorization.

5816665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163338.

The product of its digits is 43200, while the sum is 37.

The square root of 5816665 is about 2411.7763163279. The cubic root of 5816665 is about 179.8420940269.

The spelling of 5816665 in words is "five million, eight hundred sixteen thousand, six hundred sixty-five".