109891902 has 8 divisors (see below), whose sum is σ = 219783816. Its totient is φ = 36630632.

The previous prime is 109891879. The next prime is 109891921. The reversal of 109891902 is 209198901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

109891902 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9157653 + ... + 9157664.

It is an arithmetic number, because the mean of its divisors is an integer number (27472977).

Almost surely, 2^109891902 is an apocalyptic number.

109891902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

109891902 is a wasteful number, since it uses less digits than its factorization.

109891902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18315322.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 109891902 is about 10482.9338450646. The cubic root of 109891902 is about 478.9849818703.

The spelling of 109891902 in words is "one hundred nine million, eight hundred ninety-one thousand, nine hundred two".