987959178 has 48 divisors (see below), whose sum is σ = 2183231232. Its totient is φ = 322812000.

The previous prime is 987959173. The next prime is 987959179. The reversal of 987959178 is 871959789.

It is not an unprimeable number, because it can be changed into a prime (987959173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229183 + ... + 233453.

It is an arithmetic number, because the mean of its divisors is an integer number (45483984).

Almost surely, 2^987959178 is an apocalyptic number.

987959178 is an abundant number, since it is smaller than the sum of its proper divisors (1195272054).

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

987959178 is a wasteful number, since it uses less digits than its factorization.

987959178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531 (or 4528 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 63.

The square root of 987959178 is about 31431.8179238809. The cubic root of 987959178 is about 995.9701749912.

The spelling of 987959178 in words is "nine hundred eighty-seven million, nine hundred fifty-nine thousand, one hundred seventy-eight".