3660731 has 4 divisors (see below), whose sum is σ = 3710952. Its totient is φ = 3610512.

The previous prime is 3660721. The next prime is 3660733. The reversal of 3660731 is 1370663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1370663 = 7 ⋅195809.

It is a cyclic number.

It is not a de Polignac number, because 3660731 - 2⁶ = 3660667 is a prime.

It is a super-2 number, since 2×3660731² = 26801902908722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3660731.

It is not an unprimeable number, because it can be changed into a prime (3660733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25001 + ... + 25146.

It is an arithmetic number, because the mean of its divisors is an integer number (927738).

Almost surely, 2^3660731 is an apocalyptic number.

3660731 is a deficient number, since it is larger than the sum of its proper divisors (50221).

3660731 is an equidigital number, since it uses as much as digits as its factorization.

3660731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50220.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 3660731 is about 1913.3036873429. The cubic root of 3660731 is about 154.1189136087.

The spelling of 3660731 in words is "three million, six hundred sixty thousand, seven hundred thirty-one".