84887424 has 96 divisors (see below), whose sum is σ = 252258240. Its totient is φ = 27371520.

The previous prime is 84887423. The next prime is 84887441. The reversal of 84887424 is 42478848.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 84887424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84887423) 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 11 ways as a sum of consecutive naturals, for example, 34524 + ... + 36900.

It is an arithmetic number, because the mean of its divisors is an integer number (2627690).

Almost surely, 2^84887424 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 84887424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126129120).

84887424 is an abundant number, since it is smaller than the sum of its proper divisors (167370816).

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

84887424 is a wasteful number, since it uses less digits than its factorization.

84887424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428 (or 2413 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 84887424 is about 9213.4371436506. The cubic root of 84887424 is about 439.4887726362.

The spelling of 84887424 in words is "eighty-four million, eight hundred eighty-seven thousand, four hundred twenty-four".