109439078 has 8 divisors (see below), whose sum is σ = 187609872. Its totient is φ = 46902456.

The previous prime is 109439059. The next prime is 109439087. The reversal of 109439078 is 870934901.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 3908525 + ... + 3908552.

It is an arithmetic number, because the mean of its divisors is an integer number (23451234).

Almost surely, 2^109439078 is an apocalyptic number.

109439078 is a deficient number, since it is larger than the sum of its proper divisors (78170794).

109439078 is an equidigital number, since it uses as much as digits as its factorization.

109439078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817086.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 109439078 is about 10461.3133974659. The cubic root of 109439078 is about 478.3261693119.

The spelling of 109439078 in words is "one hundred nine million, four hundred thirty-nine thousand, seventy-eight".