109798839 has 12 divisors (see below), whose sum is σ = 158862600. Its totient is φ = 73077264.

The previous prime is 109798837. The next prime is 109798889. The reversal of 109798839 is 938897901.

It is not a de Polignac number, because 109798839 - 2¹ = 109798837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109798837) 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, 4284 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (13238550).

Almost surely, 2^109798839 is an apocalyptic number.

109798839 is a deficient number, since it is larger than the sum of its proper divisors (49063761).

109798839 is a wasteful number, since it uses less digits than its factorization.

109798839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334 (or 20331 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The square root of 109798839 is about 10478.4941189085. The cubic root of 109798839 is about 478.8497326917.

The spelling of 109798839 in words is "one hundred nine million, seven hundred ninety-eight thousand, eight hundred thirty-nine".