1369689 has 8 divisors (see below), whose sum is σ = 1838112. Its totient is φ = 907200.

The previous prime is 1369657. The next prime is 1369723. The reversal of 1369689 is 9869631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1369689 - 2⁵ = 1369657 is a prime.

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 1369689.

It is not an unprimeable number, because it can be changed into a prime (1369619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (229764).

2^1369689 is an apocalyptic number.

It is an amenable number.

1369689 is a deficient number, since it is larger than the sum of its proper divisors (468423).

1369689 is a wasteful number, since it uses less digits than its factorization.

1369689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967.

The product of its digits is 69984, while the sum is 42.

The square root of 1369689 is about 1170.3371309157. The cubic root of 1369689 is about 111.0556493947.

The spelling of 1369689 in words is "one million, three hundred sixty-nine thousand, six hundred eighty-nine".