1489686399 has 12 divisors (see below), whose sum is σ = 2181246496. Its totient is φ = 979519392.

The previous prime is 1489686389. The next prime is 1489686403. The reversal of 1489686399 is 9936869841.

It is a happy number.

1489686399 is a `hidden beast` number, since 1 + 489 + 6 + 8 + 63 + 99 = 666.

It is not a de Polignac number, because 1489686399 - 2⁷ = 1489686271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489686389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1133047 + ... + 1134360.

Almost surely, 2^1489686399 is an apocalyptic number.

1489686399 is a deficient number, since it is larger than the sum of its proper divisors (691560097).

1489686399 is a wasteful number, since it uses less digits than its factorization.

1489686399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267486 (or 2267483 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The square root of 1489686399 is about 38596.4557828824. The cubic root of 1489686399 is about 1142.0846229119.

The spelling of 1489686399 in words is "one billion, four hundred eighty-nine million, six hundred eighty-six thousand, three hundred ninety-nine".