1387884 has 12 divisors (see below), whose sum is σ = 3238424. Its totient is φ = 462624.

The previous prime is 1387879. The next prime is 1387913. The reversal of 1387884 is 4887831.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 57817 + ... + 57840.

2^1387884 is an apocalyptic number.

It is an amenable number.

1387884 is an abundant number, since it is smaller than the sum of its proper divisors (1850540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387884 is a wasteful number, since it uses less digits than its factorization.

1387884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115664 (or 115662 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 1387884 is about 1178.0848865850. The cubic root of 1387884 is about 111.5452436255.

The spelling of 1387884 in words is "one million, three hundred eighty-seven thousand, eight hundred eighty-four".