987118854 has 16 divisors (see below), whose sum is σ = 1993785840. Its totient is φ = 325781600.

The previous prime is 987118823. The next prime is 987118859. The reversal of 987118854 is 458811789.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 987118797 and 987118806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987118859) 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, 813849 + ... + 815060.

It is an arithmetic number, because the mean of its divisors is an integer number (124611615).

Almost surely, 2^987118854 is an apocalyptic number.

987118854 is an abundant number, since it is smaller than the sum of its proper divisors (1006666986).

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

987118854 is a wasteful number, since it uses less digits than its factorization.

987118854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629015.

The product of its digits is 645120, while the sum is 51.

The square root of 987118854 is about 31418.4476701189. The cubic root of 987118854 is about 995.6877156000.

The spelling of 987118854 in words is "nine hundred eighty-seven million, one hundred eighteen thousand, eight hundred fifty-four".