366641 has 4 divisors (see below), whose sum is σ = 399984. Its totient is φ = 333300.

The previous prime is 366631. The next prime is 366677. The reversal of 366641 is 146663.

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 not a de Polignac number, because 366641 - 2¹⁴ = 350257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 366641.

It is not an unprimeable number, because it can be changed into a prime (366631) 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, 16655 + ... + 16676.

It is an arithmetic number, because the mean of its divisors is an integer number (99996).

2³⁶⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

366641 is a deficient number, since it is larger than the sum of its proper divisors (33343).

366641 is a wasteful number, since it uses less digits than its factorization.

366641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33342.

The product of its digits is 2592, while the sum is 26.

The square root of 366641 is about 605.5088768961. The cubic root of 366641 is about 71.5726355279.

The spelling of 366641 in words is "three hundred sixty-six thousand, six hundred forty-one".