84139108 has 24 divisors (see below), whose sum is σ = 150192000. Its totient is φ = 41235168.

The previous prime is 84139079. The next prime is 84139123. The reversal of 84139108 is 80193148.

It is a happy number.

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, 46191 + ... + 47977.

It is an arithmetic number, because the mean of its divisors is an integer number (6258000).

Almost surely, 2^84139108 is an apocalyptic number.

It is an amenable number.

84139108 is a deficient number, since it is larger than the sum of its proper divisors (66052892).

84139108 is a wasteful number, since it uses less digits than its factorization.

84139108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 84139108 is about 9172.7372141581. The cubic root of 84139108 is about 438.1935370662.

The spelling of 84139108 in words is "eighty-four million, one hundred thirty-nine thousand, one hundred eight".