987255936 has 48 divisors (see below), whose sum is σ = 2840935110. Its totient is φ = 329084928.

The previous prime is 987255917. The next prime is 987255947. The reversal of 987255936 is 639552789.

987255936 is a `hidden beast` number, since 9 + 87 + 2 + 559 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 803382336 + 183873600 = 28344^2 + 13560^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427345 + ... + 429648.

Almost surely, 2^987255936 is an apocalyptic number.

987255936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

987255936 is an abundant number, since it is smaller than the sum of its proper divisors (1853679174).

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

987255936 is a wasteful number, since it uses less digits than its factorization.

987255936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857013 (or 856998 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The square root of 987255936 is about 31420.6291471065. The cubic root of 987255936 is about 995.7338041216.

The spelling of 987255936 in words is "nine hundred eighty-seven million, two hundred fifty-five thousand, nine hundred thirty-six".