100097788 has 36 divisors (see below), whose sum is σ = 206669232. Its totient is φ = 42288960.

The previous prime is 100097783. The next prime is 100097797. The reversal of 100097788 is 887790001.

It is a self number, because there is not a number n which added to its sum of digits gives 100097788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100097783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10320 + ... + 17512.

It is an arithmetic number, because the mean of its divisors is an integer number (5740812).

Almost surely, 2^100097788 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 100097788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103334616).

100097788 is an abundant number, since it is smaller than the sum of its proper divisors (106571444).

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

100097788 is a wasteful number, since it uses less digits than its factorization.

100097788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282 (or 7273 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 100097788 is about 10004.8882052725. Note that the first 3 decimals coincide. The cubic root of 100097788 is about 464.3101313008.

The spelling of 100097788 in words is "one hundred million, ninety-seven thousand, seven hundred eighty-eight".