366623 has 4 divisors (see below), whose sum is σ = 367848. Its totient is φ = 365400.

The previous prime is 366607. The next prime is 366631. The reversal of 366623 is 326663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 366623 - 2⁴ = 366607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 366592 and 366601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173 + ... + 873.

It is an arithmetic number, because the mean of its divisors is an integer number (91962).

2³⁶⁶⁶²³ is an apocalyptic number.

366623 is a deficient number, since it is larger than the sum of its proper divisors (1225).

366623 is an equidigital number, since it uses as much as digits as its factorization.

366623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its digits is 3888, while the sum is 26.

The square root of 366623 is about 605.4940131826. The cubic root of 366623 is about 71.5714642381.

It can be divided in two parts, 366 and 623, that added together give a palindrome (989).

The spelling of 366623 in words is "three hundred sixty-six thousand, six hundred twenty-three".