109609688 has 32 divisors (see below), whose sum is σ = 211857600. Its totient is φ = 53125632.

The previous prime is 109609681. The next prime is 109609691. The reversal of 109609688 is 886906901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109609681) 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, 108128 + ... + 109136.

It is an arithmetic number, because the mean of its divisors is an integer number (6620550).

Almost surely, 2^109609688 is an apocalyptic number.

It is an amenable number.

109609688 is a deficient number, since it is larger than the sum of its proper divisors (102247912).

109609688 is a wasteful number, since it uses less digits than its factorization.

109609688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 109609688 is about 10469.4645517333. The cubic root of 109609688 is about 478.5746023785.

The spelling of 109609688 in words is "one hundred nine million, six hundred nine thousand, six hundred eighty-eight".