84897072 has 100 divisors (see below), whose sum is σ = 264670560. Its totient is φ = 26116992.

The previous prime is 84897049. The next prime is 84897077. The reversal of 84897072 is 27079848.

It is not an unprimeable number, because it can be changed into a prime (84897077) 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 19 ways as a sum of consecutive naturals, for example, 14329 + ... + 19367.

Almost surely, 2^84897072 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 84897072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132335280).

84897072 is an abundant number, since it is smaller than the sum of its proper divisors (179773488).

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

84897072 is a wasteful number, since it uses less digits than its factorization.

84897072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 84897072 is about 9213.9607118763. The cubic root of 84897072 is about 439.5054222444.

The spelling of 84897072 in words is "eighty-four million, eight hundred ninety-seven thousand, seventy-two".