88109812 has 48 divisors (see below), whose sum is σ = 184246272. Its totient is φ = 36073440.

The previous prime is 88109807. The next prime is 88109831. The reversal of 88109812 is 21890188.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71433 + ... + 72655.

It is an arithmetic number, because the mean of its divisors is an integer number (3838464).

Almost surely, 2^88109812 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 88109812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92123136).

88109812 is an abundant number, since it is smaller than the sum of its proper divisors (96136460).

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

88109812 is a wasteful number, since it uses less digits than its factorization.

88109812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 88109812 is about 9386.6826941151. The cubic root of 88109812 is about 444.9809561349.

The spelling of 88109812 in words is "eighty-eight million, one hundred nine thousand, eight hundred twelve".