3660009 has 16 divisors (see below), whose sum is σ = 5026560. Its totient is φ = 2368080.

The previous prime is 3659993. The next prime is 3660011. The reversal of 3660009 is 9000663.

It is not a de Polignac number, because 3660009 - 2⁴ = 3659993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3660109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26262 + ... + 26400.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

Almost surely, 2^3660009 is an apocalyptic number.

It is an amenable number.

3660009 is a deficient number, since it is larger than the sum of its proper divisors (1366551).

3660009 is a wasteful number, since it uses less digits than its factorization.

3660009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 3660009 is about 1913.1149991571. The cubic root of 3660009 is about 154.1087807353.

The spelling of 3660009 in words is "three million, six hundred sixty thousand, nine".