366664 has 8 divisors (see below), whose sum is σ = 687510. Its totient is φ = 183328.

The previous prime is 366631. The next prime is 366677. The reversal of 366664 is 466663.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 72900 = 542^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22909 + ... + 22924.

2³⁶⁶⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

366664 is a deficient number, since it is larger than the sum of its proper divisors (320846).

366664 is a wasteful number, since it uses less digits than its factorization.

366664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45839 (or 45835 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 366664 is about 605.5278688880. The cubic root of 366664 is about 71.5741321201.

Subtracting 366664 from its reverse (466663), we obtain a palindrome (99999).

The spelling of 366664 in words is "three hundred sixty-six thousand, six hundred sixty-four".