5009665 has 4 divisors (see below), whose sum is σ = 6011604. Its totient is φ = 4007728.

The previous prime is 5009659. The next prime is 5009677. The reversal of 5009665 is 5669005.

It is a happy number.

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 3682561 + 1327104 = 1919^2 + 1152^2 .

It is a cyclic number.

It is not a de Polignac number, because 5009665 - 2¹⁵ = 4976897 is a prime.

It is a Duffinian 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, 500962 + ... + 500971.

It is an arithmetic number, because the mean of its divisors is an integer number (1502901).

Almost surely, 2^5009665 is an apocalyptic number.

It is an amenable number.

5009665 is a deficient number, since it is larger than the sum of its proper divisors (1001939).

5009665 is a wasteful number, since it uses less digits than its factorization.

5009665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001938.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 5009665 is about 2238.2280938278. The cubic root of 5009665 is about 171.1077032017.

The spelling of 5009665 in words is "five million, nine thousand, six hundred sixty-five".