109721796 has 12 divisors (see below), whose sum is σ = 256017552. Its totient is φ = 36573928.

The previous prime is 109721779. The next prime is 109721849. The reversal of 109721796 is 697127901.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4571730 + ... + 4571753.

It is an arithmetic number, because the mean of its divisors is an integer number (21334796).

Almost surely, 2^109721796 is an apocalyptic number.

It is an amenable number.

109721796 is an abundant number, since it is smaller than the sum of its proper divisors (146295756).

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

109721796 is a wasteful number, since it uses less digits than its factorization.

109721796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143490 (or 9143488 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 42.

The square root of 109721796 is about 10474.8172299091. The cubic root of 109721796 is about 478.7377076698.

The spelling of 109721796 in words is "one hundred nine million, seven hundred twenty-one thousand, seven hundred ninety-six".