987776532 has 36 divisors (see below), whose sum is σ = 2589359136. Its totient is φ = 329258520.

The previous prime is 987776527. The next prime is 987776567. The reversal of 987776532 is 235677789.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nialpdrome in base 10.

It is a congruent 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, 507144 + ... + 509087.

Almost surely, 2^987776532 is an apocalyptic number.

It is an amenable number.

987776532 is an abundant number, since it is smaller than the sum of its proper divisors (1601582604).

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

987776532 is a wasteful number, since it uses less digits than its factorization.

987776532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016250 (or 1016236 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The square root of 987776532 is about 31428.9123578911. The cubic root of 987776532 is about 995.9087955389.

The spelling of 987776532 in words is "nine hundred eighty-seven million, seven hundred seventy-six thousand, five hundred thirty-two".