109789655 has 12 divisors (see below), whose sum is σ = 139955160. Its totient is φ = 82664064.

The previous prime is 109789651. The next prime is 109789663. The reversal of 109789655 is 556987901.

It is a happy number.

It is not a de Polignac number, because 109789655 - 2² = 109789651 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109789651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36545 + ... + 39434.

It is an arithmetic number, because the mean of its divisors is an integer number (11662930).

Almost surely, 2^109789655 is an apocalyptic number.

109789655 is a deficient number, since it is larger than the sum of its proper divisors (30165505).

109789655 is an equidigital number, since it uses as much as digits as its factorization.

109789655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76018 (or 76001 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 109789655 is about 10478.0558788355. The cubic root of 109789655 is about 478.8363813709.

The spelling of 109789655 in words is "one hundred nine million, seven hundred eighty-nine thousand, six hundred fifty-five".