1339887 has 8 divisors (see below), whose sum is σ = 1848240. Its totient is φ = 862400.

The previous prime is 1339873. The next prime is 1339901. The reversal of 1339887 is 7889331.

It is an interprime number because it is at equal distance from previous prime (1339873) and next prime (1339901).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1339887 - 2⁷ = 1339759 is a prime.

1339887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7614 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (231030).

2^1339887 is an apocalyptic number.

1339887 is a deficient number, since it is larger than the sum of its proper divisors (508353).

1339887 is a wasteful number, since it uses less digits than its factorization.

1339887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15433.

The product of its digits is 36288, while the sum is 39.

The square root of 1339887 is about 1157.5348806839. The cubic root of 1339887 is about 110.2442780644.

The spelling of 1339887 in words is "one million, three hundred thirty-nine thousand, eight hundred eighty-seven".