84450816 has 160 divisors (see below), whose sum is σ = 257796000. Its totient is φ = 27279360.

The previous prime is 84450803. The next prime is 84450829. The reversal of 84450816 is 61805448.

It is an interprime number because it is at equal distance from previous prime (84450803) and next prime (84450829).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566710 + ... + 566858.

It is an arithmetic number, because the mean of its divisors is an integer number (1611225).

Almost surely, 2^84450816 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 84450816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128898000).

84450816 is an abundant number, since it is smaller than the sum of its proper divisors (173345184).

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

84450816 is a wasteful number, since it uses less digits than its factorization.

84450816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 84450816 is about 9189.7125091050. The cubic root of 84450816 is about 438.7339916725.

The spelling of 84450816 in words is "eighty-four million, four hundred fifty thousand, eight hundred sixteen".