5665723 has 12 divisors (see below), whose sum is σ = 6746520. Its totient is φ = 4741632.

The previous prime is 5665703. The next prime is 5665733. The reversal of 5665723 is 3275665.

It is not a de Polignac number, because 5665723 - 2⁵ = 5665691 is a prime.

It is a super-2 number, since 2×5665723² = 64200834225458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (562210).

Almost surely, 2^5665723 is an apocalyptic number.

5665723 is a deficient number, since it is larger than the sum of its proper divisors (1080797).

5665723 is a wasteful number, since it uses less digits than its factorization.

5665723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746 (or 2739 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The square root of 5665723 is about 2380.2779249491. The cubic root of 5665723 is about 178.2728110537.

The spelling of 5665723 in words is "five million, six hundred sixty-five thousand, seven hundred twenty-three".