1208389 has 16 divisors (see below), whose sum is σ = 1523200. Its totient is φ = 952560.

The previous prime is 1208387. The next prime is 1208399. The reversal of 1208389 is 9838021.

It is not a de Polignac number, because 1208389 - 2¹ = 1208387 is a prime.

1208389 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1208389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208387) 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, 4324 + ... + 4594.

It is an arithmetic number, because the mean of its divisors is an integer number (95200).

2^1208389 is an apocalyptic number.

It is an amenable number.

1208389 is a deficient number, since it is larger than the sum of its proper divisors (314811).

1208389 is an equidigital number, since it uses as much as digits as its factorization.

1208389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1208389 is about 1099.2674833725. The cubic root of 1208389 is about 106.5129110696.

The spelling of 1208389 in words is "one million, two hundred eight thousand, three hundred eighty-nine".