84173964 has 144 divisors (see below), whose sum is σ = 242349408. Its totient is φ = 22643712.

The previous prime is 84173941. The next prime is 84173983. The reversal of 84173964 is 46937148.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1153032 + ... + 1153104.

It is an arithmetic number, because the mean of its divisors is an integer number (1682982).

Almost surely, 2^84173964 is an apocalyptic number.

84173964 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84173964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121174704).

84173964 is an abundant number, since it is smaller than the sum of its proper divisors (158175444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84173964 is a wasteful number, since it uses less digits than its factorization.

84173964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 175 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 84173964 is about 9174.6369955437. The cubic root of 84173964 is about 438.2540383228.

The spelling of 84173964 in words is "eighty-four million, one hundred seventy-three thousand, nine hundred sixty-four".