1382887 has 4 divisors (see below), whose sum is σ = 1508616. Its totient is φ = 1257160.

The previous prime is 1382861. The next prime is 1382891. The reversal of 1382887 is 7882831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7882831 = 11 ⋅716621.

It is a cyclic number.

It is not a de Polignac number, because 1382887 - 2¹⁵ = 1350119 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62848 + ... + 62869.

It is an arithmetic number, because the mean of its divisors is an integer number (377154).

2^1382887 is an apocalyptic number.

1382887 is a deficient number, since it is larger than the sum of its proper divisors (125729).

1382887 is a wasteful number, since it uses less digits than its factorization.

1382887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125728.

The product of its digits is 21504, while the sum is 37.

The square root of 1382887 is about 1175.9621592551. The cubic root of 1382887 is about 111.4112118005.

It can be divided in two parts, 138 and 2887, that added together give a square (3025 = 55²).

The spelling of 1382887 in words is "one million, three hundred eighty-two thousand, eight hundred eighty-seven".