109836839 has 8 divisors (see below), whose sum is σ = 126517248. Its totient is φ = 93403800.

The previous prime is 109836823. The next prime is 109836841. The reversal of 109836839 is 938638901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109836839 - 2⁴ = 109836823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109836793 and 109836802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109836809) 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, 60887 + ... + 62664.

It is an arithmetic number, because the mean of its divisors is an integer number (15814656).

Almost surely, 2^109836839 is an apocalyptic number.

109836839 is a deficient number, since it is larger than the sum of its proper divisors (16680409).

109836839 is a wasteful number, since it uses less digits than its factorization.

109836839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123685.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 109836839 is about 10480.3071996960. The cubic root of 109836839 is about 478.9049676142.

The spelling of 109836839 in words is "one hundred nine million, eight hundred thirty-six thousand, eight hundred thirty-nine".