366643 has 8 divisors (see below), whose sum is σ = 403200. Its totient is φ = 331848.

The previous prime is 366631. The next prime is 366677. The reversal of 366643 is 346663.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366683) 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, 18 + ... + 856.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2³⁶⁶⁶⁴³ is an apocalyptic number.

366643 is a deficient number, since it is larger than the sum of its proper divisors (36557).

366643 is a wasteful number, since it uses less digits than its factorization.

366643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its digits is 7776, while the sum is 28.

The square root of 366643 is about 605.5105283973. The cubic root of 366643 is about 71.5727656688.

The spelling of 366643 in words is "three hundred sixty-six thousand, six hundred forty-three".