84213480 has 128 divisors (see below), whose sum is σ = 279619200. Its totient is φ = 20155392.

The previous prime is 84213433. The next prime is 84213487. The reversal of 84213480 is 8431248.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (84213487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56991 + ... + 58449.

It is an arithmetic number, because the mean of its divisors is an integer number (2184525).

Almost surely, 2^84213480 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 84213480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139809600).

84213480 is an abundant number, since it is smaller than the sum of its proper divisors (195405720).

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

84213480 is a wasteful number, since it uses less digits than its factorization.

84213480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 84213480 is about 9176.7902885486. The cubic root of 84213480 is about 438.3226079709.

The spelling of 84213480 in words is "eighty-four million, two hundred thirteen thousand, four hundred eighty".