916988688 has 280 divisors, whose sum is σ = 3324328896. Its totient is φ = 237945600.

The previous prime is 916988663. The next prime is 916988689. The reversal of 916988688 is 886889619.

It is a super-2 number, since 2×916988688² = 1681736507839922688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (916988689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 897618 + ... + 898638.

Almost surely, 2^916988688 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 916988688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1662164448).

916988688 is an abundant number, since it is smaller than the sum of its proper divisors (2407340208).

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

916988688 is a wasteful number, since it uses less digits than its factorization.

916988688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065 (or 1044 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 916988688 is about 30281.8210813022. The cubic root of 916988688 is about 971.5265183658.

The spelling of 916988688 in words is "nine hundred sixteen million, nine hundred eighty-eight thousand, six hundred eighty-eight".