366686 has 4 divisors (see below), whose sum is σ = 550032. Its totient is φ = 183342.

The previous prime is 366683. The next prime is 366697. The reversal of 366686 is 686663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686663 = 97 ⋅7079.

It is an Ulam number.

It is a Curzon number.

It is a congruent 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 as a sum of consecutive naturals, namely, 91670 + ... + 91673.

It is an arithmetic number, because the mean of its divisors is an integer number (137508).

2³⁶⁶⁶⁸⁶ is an apocalyptic number.

366686 is a deficient number, since it is larger than the sum of its proper divisors (183346).

366686 is a wasteful number, since it uses less digits than its factorization.

366686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183345.

The product of its digits is 31104, while the sum is 35.

The square root of 366686 is about 605.5460345837. The cubic root of 366686 is about 71.5755635845.

The spelling of 366686 in words is "three hundred sixty-six thousand, six hundred eighty-six".