109639472 has 20 divisors (see below), whose sum is σ = 212817480. Its totient is φ = 54718848.

The previous prime is 109639471. The next prime is 109639487. The reversal of 109639472 is 274936901.

It is not an unprimeable number, because it can be changed into a prime (109639471) 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 3 ways as a sum of consecutive naturals, for example, 3083 + ... + 15125.

It is an arithmetic number, because the mean of its divisors is an integer number (10640874).

Almost surely, 2^109639472 is an apocalyptic number.

It is an amenable number.

109639472 is a deficient number, since it is larger than the sum of its proper divisors (103178008).

109639472 is a wasteful number, since it uses less digits than its factorization.

109639472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620 (or 12614 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 109639472 is about 10470.8868774331. The cubic root of 109639472 is about 478.6179457950.

The spelling of 109639472 in words is "one hundred nine million, six hundred thirty-nine thousand, four hundred seventy-two".