1389914 has 4 divisors (see below), whose sum is σ = 2084874. Its totient is φ = 694956.

The previous prime is 1389911. The next prime is 1389917. The reversal of 1389914 is 4199831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4199831 = 1429 ⋅2939.

It is an interprime number because it is at equal distance from previous prime (1389911) and next prime (1389917).

It can be written as a sum of positive squares in only one way, i.e., 1243225 + 146689 = 1115^2 + 383^2 .

It is not an unprimeable number, because it can be changed into a prime (1389911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347477 + ... + 347480.

2^1389914 is an apocalyptic number.

1389914 is a deficient number, since it is larger than the sum of its proper divisors (694960).

1389914 is an equidigital number, since it uses as much as digits as its factorization.

1389914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694959.

The product of its digits is 7776, while the sum is 35.

The square root of 1389914 is about 1178.9461395670. The cubic root of 1389914 is about 111.5996013226.

The spelling of 1389914 in words is "one million, three hundred eighty-nine thousand, nine hundred fourteen".