366649 has 4 divisors (see below), whose sum is σ = 369664. Its totient is φ = 363636.

The previous prime is 366631. The next prime is 366677. The reversal of 366649 is 946663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 366649 - 2⁷ = 366521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (360649) 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, 1317 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (92416).

2³⁶⁶⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

366649 is a deficient number, since it is larger than the sum of its proper divisors (3015).

366649 is a wasteful number, since it uses less digits than its factorization.

366649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014.

The product of its digits is 23328, while the sum is 34.

The square root of 366649 is about 605.5154828739. The cubic root of 366649 is about 71.5731560888.

The spelling of 366649 in words is "three hundred sixty-six thousand, six hundred forty-nine".