84549109 has 8 divisors (see below), whose sum is σ = 90859968. Its totient is φ = 78386880.

The previous prime is 84549097. The next prime is 84549119. The reversal of 84549109 is 90194548.

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 84549109 - 2¹¹ = 84547061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84549119) 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, 35977 + ... + 38254.

It is an arithmetic number, because the mean of its divisors is an integer number (11357496).

Almost surely, 2^84549109 is an apocalyptic number.

It is an amenable number.

84549109 is a deficient number, since it is larger than the sum of its proper divisors (6310859).

84549109 is a wasteful number, since it uses less digits than its factorization.

84549109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74315.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 84549109 is about 9195.0589448899. The cubic root of 84549109 is about 438.9041410451.

The spelling of 84549109 in words is "eighty-four million, five hundred forty-nine thousand, one hundred nine".