1083987 has 12 divisors (see below), whose sum is σ = 1602744. Its totient is φ = 705600.

The previous prime is 1083983. The next prime is 1084001. The reversal of 1083987 is 7893801.

It is not a de Polignac number, because 1083987 - 2² = 1083983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1083983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1014 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (133562).

2^1083987 is an apocalyptic number.

1083987 is a deficient number, since it is larger than the sum of its proper divisors (518757).

1083987 is a wasteful number, since it uses less digits than its factorization.

1083987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2847 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1083987 is about 1041.1469636896. The cubic root of 1083987 is about 102.7246549809.

It can be divided in two parts, 108 and 3987, that added together give a triangular number (4095 = T₉₀).

The spelling of 1083987 in words is "one million, eighty-three thousand, nine hundred eighty-seven".