109785836 has 12 divisors (see below), whose sum is σ = 192642912. Its totient is φ = 54745008.

The previous prime is 109785829. The next prime is 109785839. The reversal of 109785836 is 638587901.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (109785839) 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, 35300 + ... + 38283.

It is an arithmetic number, because the mean of its divisors is an integer number (16053576).

Almost surely, 2^109785836 is an apocalyptic number.

It is an amenable number.

109785836 is a deficient number, since it is larger than the sum of its proper divisors (82857076).

109785836 is a wasteful number, since it uses less digits than its factorization.

109785836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73960 (or 73958 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 109785836 is about 10477.8736392457. The cubic root of 109785836 is about 478.8308292469.

The spelling of 109785836 in words is "one hundred nine million, seven hundred eighty-five thousand, eight hundred thirty-six".