369989 has 4 divisors (see below), whose sum is σ = 376320. Its totient is φ = 363660.

The previous prime is 369983. The next prime is 369991. The reversal of 369989 is 989963.

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 a de Polignac number, because none of the positive numbers 2^k-369989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 369989.

It is not an unprimeable number, because it can be changed into a prime (369983) 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, 3077 + ... + 3194.

It is an arithmetic number, because the mean of its divisors is an integer number (94080).

2³⁶⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

369989 is a deficient number, since it is larger than the sum of its proper divisors (6331).

369989 is an equidigital number, since it uses as much as digits as its factorization.

369989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330.

The product of its digits is 104976, while the sum is 44.

The square root of 369989 is about 608.2672110183. The cubic root of 369989 is about 71.7898320758.

The spelling of 369989 in words is "three hundred sixty-nine thousand, nine hundred eighty-nine".