84457208 has 32 divisors (see below), whose sum is σ = 173882160. Its totient is φ = 38138880.

The previous prime is 84457201. The next prime is 84457213. The reversal of 84457208 is 80275448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84457201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10760 + ... + 16872.

Almost surely, 2^84457208 is an apocalyptic number.

84457208 is a gapful number since it is divisible by the number (88) 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 84457208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86941080).

84457208 is an abundant number, since it is smaller than the sum of its proper divisors (89424952).

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

84457208 is a wasteful number, since it uses less digits than its factorization.

84457208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6287 (or 6283 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 84457208 is about 9190.0602827185. The cubic root of 84457208 is about 438.7450605094.

The spelling of 84457208 in words is "eighty-four million, four hundred fifty-seven thousand, two hundred eight".