109909910 has 16 divisors (see below), whose sum is σ = 215823312. Its totient is φ = 39967200.

The previous prime is 109909907. The next prime is 109909951. The reversal of 109909910 is 19909901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499481 + ... + 499700.

It is an arithmetic number, because the mean of its divisors is an integer number (13488957).

Almost surely, 2^109909910 is an apocalyptic number.

109909910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109909910 is a deficient number, since it is larger than the sum of its proper divisors (105913402).

109909910 is a wasteful number, since it uses less digits than its factorization.

109909910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999199.

The product of its (nonzero) digits is 6561, while the sum is 38.

The square root of 109909910 is about 10483.7927297329. The cubic root of 109909910 is about 479.0111442180.

Subtracting from 109909910 its reverse (19909901), we obtain a palindrome (90000009).

It can be divided in two parts, 109 and 909910, that added together give a palindrome (910019).

The spelling of 109909910 in words is "one hundred nine million, nine hundred nine thousand, nine hundred ten".