1387459 has 4 divisors (see below), whose sum is σ = 1389816. Its totient is φ = 1385104.

The previous prime is 1387433. The next prime is 1387499. The reversal of 1387459 is 9547831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9547831 = 89 ⋅107279.

It is a cyclic number.

It is not a de Polignac number, because 1387459 - 2⁵ = 1387427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387499) 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 in 3 ways as a sum of consecutive naturals, for example, 567 + ... + 1759.

It is an arithmetic number, because the mean of its divisors is an integer number (347454).

2^1387459 is an apocalyptic number.

1387459 is a deficient number, since it is larger than the sum of its proper divisors (2357).

1387459 is a wasteful number, since it uses less digits than its factorization.

1387459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356.

The product of its digits is 30240, while the sum is 37.

The square root of 1387459 is about 1177.9044952796. The cubic root of 1387459 is about 111.5338566104.

The spelling of 1387459 in words is "one million, three hundred eighty-seven thousand, four hundred fifty-nine".