366689 has 8 divisors (see below), whose sum is σ = 388800. Its totient is φ = 345136.

The previous prime is 366683. The next prime is 366697. The reversal of 366689 is 986663.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 366689 - 2⁸ = 366433 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

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, 2387 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2³⁶⁶⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

366689 is a deficient number, since it is larger than the sum of its proper divisors (22111).

366689 is a wasteful number, since it uses less digits than its factorization.

366689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279.

The product of its digits is 46656, while the sum is 38.

The square root of 366689 is about 605.5485116818. The cubic root of 366689 is about 71.5757587798.

The spelling of 366689 in words is "three hundred sixty-six thousand, six hundred eighty-nine".