109878347 has 4 divisors (see below), whose sum is σ = 109909800. Its totient is φ = 109846896.

The previous prime is 109878341. The next prime is 109878367. The reversal of 109878347 is 743878901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743878901 = 137 ⋅5429773.

It is a cyclic number.

It is not a de Polignac number, because 109878347 - 2⁴ = 109878331 is a prime.

It is a super-2 number, since 2×109878347² = 24146502278904818, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109878341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9722 + ... + 17727.

It is an arithmetic number, because the mean of its divisors is an integer number (27477450).

Almost surely, 2^109878347 is an apocalyptic number.

109878347 is a deficient number, since it is larger than the sum of its proper divisors (31453).

109878347 is an equidigital number, since it uses as much as digits as its factorization.

109878347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31452.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 109878347 is about 10482.2872981044. The cubic root of 109878347 is about 478.9652870360.

The spelling of 109878347 in words is "one hundred nine million, eight hundred seventy-eight thousand, three hundred forty-seven".