368491 has 2 divisors, whose sum is σ = 368492. Its totient is φ = 368490.

The previous prime is 368471. The next prime is 368507. The reversal of 368491 is 194863.

It is a strong prime.

It is an emirp because it is prime and its reverse (194863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 368491 - 2⁷ = 368363 is a prime.

It is a super-3 number, since 3×368491³ = 150107333471384313, which contains 333 as substring.

368491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (368411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184245 + 184246.

It is an arithmetic number, because the mean of its divisors is an integer number (184246).

2³⁶⁸⁴⁹¹ is an apocalyptic number.

368491 is a deficient number, since it is larger than the sum of its proper divisors (1).

368491 is an equidigital number, since it uses as much as digits as its factorization.

368491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 368491 is about 607.0345953898. The cubic root of 368491 is about 71.6928142075.

The spelling of 368491 in words is "three hundred sixty-eight thousand, four hundred ninety-one".