366989 has 8 divisors (see below), whose sum is σ = 424320. Its totient is φ = 310896.

The previous prime is 366983. The next prime is 366997. The reversal of 366989 is 989663.

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 366989 - 2⁴ = 366973 is a prime.

It is a super-2 number, since 2×366989² = 269361852242, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 366989.

It is not an unprimeable number, because it can be changed into a prime (366983) 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, 467 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (53040).

2³⁶⁶⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

366989 is a deficient number, since it is larger than the sum of its proper divisors (57331).

366989 is a wasteful number, since it uses less digits than its factorization.

366989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its digits is 69984, while the sum is 41.

The square root of 366989 is about 605.7961703411. The cubic root of 366989 is about 71.5952729316.

The spelling of 366989 in words is "three hundred sixty-six thousand, nine hundred eighty-nine".