1337887 has 4 divisors (see below), whose sum is σ = 1396080. Its totient is φ = 1279696.

The previous prime is 1337873. The next prime is 1337891. The reversal of 1337887 is 7887331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7887331 = 193 ⋅40867.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1337887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317887) 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, 29062 + ... + 29107.

It is an arithmetic number, because the mean of its divisors is an integer number (349020).

2^1337887 is an apocalyptic number.

1337887 is a deficient number, since it is larger than the sum of its proper divisors (58193).

1337887 is an equidigital number, since it uses as much as digits as its factorization.

1337887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58192.

The product of its digits is 28224, while the sum is 37.

The square root of 1337887 is about 1156.6706532112. The cubic root of 1337887 is about 110.1893982245.

The spelling of 1337887 in words is "one million, three hundred thirty-seven thousand, eight hundred eighty-seven".