84109105 has 8 divisors (see below), whose sum is σ = 106243200. Its totient is φ = 63745776.

The previous prime is 84109093. The next prime is 84109121. The reversal of 84109105 is 50190148.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84109105 - 2⁷ = 84108977 is a prime.

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, 442585 + ... + 442774.

It is an arithmetic number, because the mean of its divisors is an integer number (13280400).

Almost surely, 2^84109105 is an apocalyptic number.

It is an amenable number.

84109105 is a deficient number, since it is larger than the sum of its proper divisors (22134095).

84109105 is a wasteful number, since it uses less digits than its factorization.

84109105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885383.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 84109105 is about 9171.1016241235. The cubic root of 84109105 is about 438.1414460152.

The spelling of 84109105 in words is "eighty-four million, one hundred nine thousand, one hundred five".