109891896 has 64 divisors (see below), whose sum is σ = 294710400. Its totient is φ = 34040448.

The previous prime is 109891879. The next prime is 109891921. The reversal of 109891896 is 698198901.

It is a happy number.

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, 21895 + ... + 26441.

It is an arithmetic number, because the mean of its divisors is an integer number (4604850).

Almost surely, 2^109891896 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 109891896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147355200).

109891896 is an abundant number, since it is smaller than the sum of its proper divisors (184818504).

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

109891896 is a wasteful number, since it uses less digits than its factorization.

109891896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628 (or 4624 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 51.

The square root of 109891896 is about 10482.9335588851. The cubic root of 109891896 is about 478.9849731529.

The spelling of 109891896 in words is "one hundred nine million, eight hundred ninety-one thousand, eight hundred ninety-six".