1389316 has 6 divisors (see below), whose sum is σ = 2431310. Its totient is φ = 694656.

The previous prime is 1389301. The next prime is 1389319. The reversal of 1389316 is 6139831.

1389316 = 229² + 230² + ... + 252².

It can be written as a sum of positive squares in only one way, i.e., 1331716 + 57600 = 1154^2 + 240^2 .

It is not an unprimeable number, because it can be changed into a prime (1389319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173661 + ... + 173668.

2^1389316 is an apocalyptic number.

It is an amenable number.

1389316 is a deficient number, since it is larger than the sum of its proper divisors (1041994).

1389316 is a wasteful number, since it uses less digits than its factorization.

1389316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347333 (or 347331 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 1389316 is about 1178.6924959462. The cubic root of 1389316 is about 111.5835940649.

The spelling of 1389316 in words is "one million, three hundred eighty-nine thousand, three hundred sixteen".