1987086 has 16 divisors (see below), whose sum is σ = 4034304. Its totient is φ = 652344.

The previous prime is 1987081. The next prime is 1987091. The reversal of 1987086 is 6807891.

It is an interprime number because it is at equal distance from previous prime (1987081) and next prime (1987091).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (252144).

2^1987086 is an apocalyptic number.

1987086 is an abundant number, since it is smaller than the sum of its proper divisors (2047218).

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

1987086 is a wasteful number, since it uses less digits than its factorization.

1987086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1987086 is about 1409.6403796714. The cubic root of 1987086 is about 125.7203422161.

The spelling of 1987086 in words is "one million, nine hundred eighty-seven thousand, eighty-six".