1389616 has 10 divisors (see below), whose sum is σ = 2692412. Its totient is φ = 694800.

The previous prime is 1389589. The next prime is 1389623. The reversal of 1389616 is 6169831.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43410 + ... + 43441.

2^1389616 is an apocalyptic number.

1389616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1389616 is a deficient number, since it is larger than the sum of its proper divisors (1302796).

1389616 is an equidigital number, since it uses as much as digits as its factorization.

1389616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86859 (or 86853 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 1389616 is about 1178.8197487318. The cubic root of 1389616 is about 111.5916250358.

The spelling of 1389616 in words is "one million, three hundred eighty-nine thousand, six hundred sixteen".