109603691 has 4 divisors (see below), whose sum is σ = 109647000. Its totient is φ = 109560384.

The previous prime is 109603679. The next prime is 109603721. The reversal of 109603691 is 196306901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109603691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109603621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17606 + ... + 23003.

It is an arithmetic number, because the mean of its divisors is an integer number (27411750).

Almost surely, 2^109603691 is an apocalyptic number.

109603691 is a deficient number, since it is larger than the sum of its proper divisors (43309).

109603691 is an equidigital number, since it uses as much as digits as its factorization.

109603691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43308.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 109603691 is about 10469.1781434839. The cubic root of 109603691 is about 478.5658742442.

The spelling of 109603691 in words is "one hundred nine million, six hundred three thousand, six hundred ninety-one".