109689417 has 8 divisors (see below), whose sum is σ = 162502880. Its totient is φ = 73126260.

The previous prime is 109689401. The next prime is 109689421. The reversal of 109689417 is 714986901.

It is a happy number.

It is not a de Polignac number, because 109689417 - 2⁴ = 109689401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109689467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031259 + ... + 2031312.

It is an arithmetic number, because the mean of its divisors is an integer number (20312860).

Almost surely, 2^109689417 is an apocalyptic number.

It is an amenable number.

109689417 is a deficient number, since it is larger than the sum of its proper divisors (52813463).

109689417 is an equidigital number, since it uses as much as digits as its factorization.

109689417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062580 (or 4062574 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 109689417 is about 10473.2715519077. The cubic root of 109689417 is about 478.6906110617.

The spelling of 109689417 in words is "one hundred nine million, six hundred eighty-nine thousand, four hundred seventeen".