369663 has 16 divisors (see below), whose sum is σ = 583680. Its totient is φ = 203616.

The previous prime is 369661. The next prime is 369673. The reversal of 369663 is 366963.

It is a Cunningham number, because it is equal to 608²-1.

It is not a de Polignac number, because 369663 - 2¹ = 369661 is a prime.

369663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306 + ... + 912.

It is an arithmetic number, because the mean of its divisors is an integer number (36480).

2³⁶⁹⁶⁶³ is an apocalyptic number.

369663 is a deficient number, since it is larger than the sum of its proper divisors (214017).

369663 is a wasteful number, since it uses less digits than its factorization.

369663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its digits is 17496, while the sum is 33.

The square root of 369663 is about 607.9991776310. Note that the first 3 decimals coincide. The cubic root of 369663 is about 71.7687410323.

The spelling of 369663 in words is "three hundred sixty-nine thousand, six hundred sixty-three".