84423156 has 96 divisors (see below), whose sum is σ = 229340160. Its totient is φ = 23975424.

The previous prime is 84423151. The next prime is 84423161. The reversal of 84423156 is 65132448.

It is an interprime number because it is at equal distance from previous prime (84423151) and next prime (84423161).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84423151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88675 + ... + 89621.

It is an arithmetic number, because the mean of its divisors is an integer number (2388960).

Almost surely, 2^84423156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84423156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114670080).

84423156 is an abundant number, since it is smaller than the sum of its proper divisors (144917004).

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

84423156 is a wasteful number, since it uses less digits than its factorization.

84423156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1011 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 84423156 is about 9188.2074421511. The cubic root of 84423156 is about 438.6860872317.

The spelling of 84423156 in words is "eighty-four million, four hundred twenty-three thousand, one hundred fifty-six".