109721696 has 48 divisors (see below), whose sum is σ = 250387200. Its totient is φ = 46354560.

The previous prime is 109721693. The next prime is 109721719. The reversal of 109721696 is 696127901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109721693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12455 + ... + 19353.

It is an arithmetic number, because the mean of its divisors is an integer number (5216400).

Almost surely, 2^109721696 is an apocalyptic number.

109721696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109721696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125193600).

109721696 is an abundant number, since it is smaller than the sum of its proper divisors (140665504).

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

109721696 is an equidigital number, since it uses as much as digits as its factorization.

109721696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987 (or 6979 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 109721696 is about 10474.8124565550. The cubic root of 109721696 is about 478.7375622298.

The spelling of 109721696 in words is "one hundred nine million, seven hundred twenty-one thousand, six hundred ninety-six".