987427178 has 8 divisors (see below), whose sum is σ = 1482005568. Its totient is φ = 493425324.

The previous prime is 987427171. The next prime is 987427211. The reversal of 987427178 is 871724789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (987427171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139826 + ... + 146717.

It is an arithmetic number, because the mean of its divisors is an integer number (185250696).

Almost surely, 2^987427178 is an apocalyptic number.

987427178 is a deficient number, since it is larger than the sum of its proper divisors (494578390).

987427178 is a wasteful number, since it uses less digits than its factorization.

987427178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288268.

The product of its digits is 1580544, while the sum is 53.

The square root of 987427178 is about 31423.3540221282. The cubic root of 987427178 is about 995.7913716291.

The spelling of 987427178 in words is "nine hundred eighty-seven million, four hundred twenty-seven thousand, one hundred seventy-eight".