987894236 has 24 divisors (see below), whose sum is σ = 2039525376. Its totient is φ = 409725360.

The previous prime is 987894233. The next prime is 987894241. The reversal of 987894236 is 632498789.

It is a happy number.

987894236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987894233) 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, 568196 + ... + 569931.

It is an arithmetic number, because the mean of its divisors is an integer number (84980224).

Almost surely, 2^987894236 is an apocalyptic number.

It is an amenable number.

987894236 is an abundant number, since it is smaller than the sum of its proper divisors (1051631140).

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

987894236 is a wasteful number, since it uses less digits than its factorization.

987894236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138169 (or 1138167 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 987894236 is about 31430.7848454346. The cubic root of 987894236 is about 995.9483516494.

The spelling of 987894236 in words is "nine hundred eighty-seven million, eight hundred ninety-four thousand, two hundred thirty-six".