368991 has 12 divisors (see below), whose sum is σ = 609232. Its totient is φ = 210816.

The previous prime is 368957. The next prime is 369007. The reversal of 368991 is 199863.

It is not a de Polignac number, because 368991 - 2¹⁴ = 352607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2866 + ... + 2991.

2³⁶⁸⁹⁹¹ is an apocalyptic number.

368991 is a deficient number, since it is larger than the sum of its proper divisors (240241).

368991 is a wasteful number, since it uses less digits than its factorization.

368991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870 (or 5867 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 368991 is about 607.4462939224. The cubic root of 368991 is about 71.7252258595.

The spelling of 368991 in words is "three hundred sixty-eight thousand, nine hundred ninety-one".