4986665 has 4 divisors (see below), whose sum is σ = 5984004. Its totient is φ = 3989328.

The previous prime is 4986649. The next prime is 4986677. The reversal of 4986665 is 5666894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5666894 = 2 ⋅2833447.

It can be written as a sum of positive squares in 2 ways, for example, as 1315609 + 3671056 = 1147^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 4986665 - 2⁴ = 4986649 is a prime.

It is an Ulam number.

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, 498662 + ... + 498671.

It is an arithmetic number, because the mean of its divisors is an integer number (1496001).

Almost surely, 2^4986665 is an apocalyptic number.

It is an amenable number.

4986665 is a deficient number, since it is larger than the sum of its proper divisors (997339).

4986665 is an equidigital number, since it uses as much as digits as its factorization.

4986665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997338.

The product of its digits is 311040, while the sum is 44.

The square root of 4986665 is about 2233.0841900833. The cubic root of 4986665 is about 170.8454424624.

The spelling of 4986665 in words is "four million, nine hundred eighty-six thousand, six hundred sixty-five".