84897504 has 96 divisors (see below), whose sum is σ = 250417440. Its totient is φ = 27979776.

The previous prime is 84897503. The next prime is 84897517. The reversal of 84897504 is 40579848.

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 84897504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84897503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83302 + ... + 84314.

It is an arithmetic number, because the mean of its divisors is an integer number (2608515).

Almost surely, 2^84897504 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 84897504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125208720).

84897504 is an abundant number, since it is smaller than the sum of its proper divisors (165519936).

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

84897504 is a wasteful number, since it uses less digits than its factorization.

84897504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 84897504 is about 9213.9841545338. The cubic root of 84897504 is about 439.5061677197.

The spelling of 84897504 in words is "eighty-four million, eight hundred ninety-seven thousand, five hundred four".