985663488 has 96 divisors (see below), whose sum is σ = 2649235680. Its totient is φ = 325877760.

The previous prime is 985663477. The next prime is 985663537. The reversal of 985663488 is 884366589.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×985663488² = 1943065023152652288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841143 + ... + 842313.

It is an arithmetic number, because the mean of its divisors is an integer number (27596205).

Almost surely, 2^985663488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985663488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324617840).

985663488 is an abundant number, since it is smaller than the sum of its proper divisors (1663572192).

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

985663488 is a wasteful number, since it uses less digits than its factorization.

985663488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1313 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The square root of 985663488 is about 31395.2781163028. The cubic root of 985663488 is about 995.1981417307.

The spelling of 985663488 in words is "nine hundred eighty-five million, six hundred sixty-three thousand, four hundred eighty-eight".