1200087 has 24 divisors (see below), whose sum is σ = 2031744. Its totient is φ = 668304.

The previous prime is 1200083. The next prime is 1200109. The reversal of 1200087 is 7800021.

It is not a de Polignac number, because 1200087 - 2² = 1200083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200083) 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 23 ways as a sum of consecutive naturals, for example, 2488 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (84656).

2^1200087 is an apocalyptic number.

1200087 is a deficient number, since it is larger than the sum of its proper divisors (831657).

1200087 is a wasteful number, since it uses less digits than its factorization.

1200087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1200087 is about 1095.4848241760. The cubic root of 1200087 is about 106.2684249477.

The spelling of 1200087 in words is "one million, two hundred thousand, eighty-seven".