1389076 has 12 divisors (see below), whose sum is σ = 2617972. Its totient is φ = 641088.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389076 is 6709831.

It can be written as a sum of positive squares in 2 ways, for example, as 864900 + 524176 = 930^2 + 724^2 .

It is a d-powerful number, because it can be written as 1 + 3³ + 8⁵ + 9⁶ + 0 + 7⁷ + 6⁴ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13305 + ... + 13408.

2^1389076 is an apocalyptic number.

It is an amenable number.

1389076 is a deficient number, since it is larger than the sum of its proper divisors (1228896).

1389076 is a wasteful number, since it uses less digits than its factorization.

1389076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26730 (or 26728 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1389076 is about 1178.5906838254. The cubic root of 1389076 is about 111.5771684558.

The spelling of 1389076 in words is "one million, three hundred eighty-nine thousand, seventy-six".