369609 has 4 divisors (see below), whose sum is σ = 492816. Its totient is φ = 246404.

The previous prime is 369581. The next prime is 369637. The reversal of 369609 is 906963.

369609 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

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 an interprime number because it is at equal distance from previous prime (369581) and next prime (369637).

It is a cyclic number.

It is not a de Polignac number, because 369609 - 2⁸ = 369353 is a prime.

It is a super-2 number, since 2×369609² = 273221625762, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 369609.

It is not an unprimeable number, because it can be changed into a prime (369659) 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, 61599 + ... + 61604.

It is an arithmetic number, because the mean of its divisors is an integer number (123204).

2³⁶⁹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

369609 is a deficient number, since it is larger than the sum of its proper divisors (123207).

369609 is a wasteful number, since it uses less digits than its factorization.

369609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123206.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 369609 is about 607.9547680543. The cubic root of 369609 is about 71.7652462269.

The spelling of 369609 in words is "three hundred sixty-nine thousand, six hundred nine".