366881 has 2 divisors, whose sum is σ = 366882. Its totient is φ = 366880.

The previous prime is 366869. The next prime is 366889. The reversal of 366881 is 188663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 80656 = 535^2 + 284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366881 is a prime.

It is a super-2 number, since 2×366881² = 269203336322, which contains 22 as substring.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 366881.

It is not a weakly prime, because it can be changed into another prime (366889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183440 + 183441.

It is an arithmetic number, because the mean of its divisors is an integer number (183441).

2³⁶⁶⁸⁸¹ is an apocalyptic number.

It is an amenable number.

366881 is a deficient number, since it is larger than the sum of its proper divisors (1).

366881 is an equidigital number, since it uses as much as digits as its factorization.

366881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 366881 is about 605.7070248891. The cubic root of 366881 is about 71.5882490625.

The spelling of 366881 in words is "three hundred sixty-six thousand, eight hundred eighty-one".