3660499 has 4 divisors (see below), whose sum is σ = 3664336. Its totient is φ = 3656664.

The previous prime is 3660497. The next prime is 3660523. The reversal of 3660499 is 9940663.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9940663 = 2141 ⋅4643.

It is a cyclic number.

It is not a de Polignac number, because 3660499 - 2¹ = 3660497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3660493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (916084).

Almost surely, 2^3660499 is an apocalyptic number.

3660499 is a deficient number, since it is larger than the sum of its proper divisors (3837).

3660499 is a wasteful number, since it uses less digits than its factorization.

3660499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 3660499 is about 1913.2430582652. The cubic root of 3660499 is about 154.1156577614.

The spelling of 3660499 in words is "three million, six hundred sixty thousand, four hundred ninety-nine".