988786854 has 24 divisors (see below), whose sum is σ = 2337133032. Its totient is φ = 299632320.

The previous prime is 988786823. The next prime is 988786867. The reversal of 988786854 is 458687889.

It is a junction number, because it is equal to n+sod(n) for n = 988786791 and 988786800.

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, 2496739 + ... + 2497134.

It is an arithmetic number, because the mean of its divisors is an integer number (97380543).

Almost surely, 2^988786854 is an apocalyptic number.

988786854 is an abundant number, since it is smaller than the sum of its proper divisors (1348346178).

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

988786854 is a wasteful number, since it uses less digits than its factorization.

988786854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993892 (or 4993889 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The square root of 988786854 is about 31444.9813801821. The cubic root of 988786854 is about 996.2482264651.

The spelling of 988786854 in words is "nine hundred eighty-eight million, seven hundred eighty-six thousand, eight hundred fifty-four".