366993 has 18 divisors (see below), whose sum is σ = 584402. Its totient is φ = 221760.

The previous prime is 366983. The next prime is 366997. The reversal of 366993 is 399663.

It can be written as a sum of positive squares in only one way, i.e., 278784 + 88209 = 528^2 + 297^2 .

It is not a de Polignac number, because 366993 - 2¹⁰ = 365969 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 366993.

It is not an unprimeable number, because it can be changed into a prime (366997) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 921 + ... + 1257.

2³⁶⁶⁹⁹³ is an apocalyptic number.

366993 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

366993 is a deficient number, since it is larger than the sum of its proper divisors (217409).

366993 is a wasteful number, since it uses less digits than its factorization.

366993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 351 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 366993 is about 605.7994717726. The cubic root of 366993 is about 71.5955330484.

The spelling of 366993 in words is "three hundred sixty-six thousand, nine hundred ninety-three".