3660491 has 8 divisors (see below), whose sum is σ = 3902544. Its totient is φ = 3421440.

The previous prime is 3660487. The next prime is 3660493. The reversal of 3660491 is 1940663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3660491 - 2² = 3660487 is a prime.

It is a super-2 number, since 2×3660491² = 26798388722162, which contains 22 as substring.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 2111 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (487818).

Almost surely, 2^3660491 is an apocalyptic number.

3660491 is a deficient number, since it is larger than the sum of its proper divisors (242053).

3660491 is a wasteful number, since it uses less digits than its factorization.

3660491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3660491 is about 1913.2409675731. The cubic root of 3660491 is about 154.1155454884.

The spelling of 3660491 in words is "three million, six hundred sixty thousand, four hundred ninety-one".