103991088 has 80 divisors (see below), whose sum is σ = 280669536. Its totient is φ = 33146880.

The previous prime is 103991087. The next prime is 103991089. The reversal of 103991088 is 880199301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (103991087) and next prime (103991089).

It is not an unprimeable number, because it can be changed into a prime (103991087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103806 + ... + 104802.

Almost surely, 2^103991088 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 103991088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140334768).

103991088 is an abundant number, since it is smaller than the sum of its proper divisors (176678448).

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

103991088 is a wasteful number, since it uses less digits than its factorization.

103991088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 103991088 is about 10197.6020710753. The cubic root of 103991088 is about 470.2535044074.

The spelling of 103991088 in words is "one hundred three million, nine hundred ninety-one thousand, eighty-eight".