1987075 has 12 divisors (see below), whose sum is σ = 2506288. Its totient is φ = 1562400.

The previous prime is 1987067. The next prime is 1987081. The reversal of 1987075 is 5707891.

It is not a de Polignac number, because 1987075 - 2³ = 1987067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 874 + ... + 2176.

2^1987075 is an apocalyptic number.

1987075 is a deficient number, since it is larger than the sum of its proper divisors (519213).

1987075 is a wasteful number, since it uses less digits than its factorization.

1987075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 1987075 is about 1409.6364779616. The cubic root of 1987075 is about 125.7201102304.

The spelling of 1987075 in words is "one million, nine hundred eighty-seven thousand, seventy-five".