73897056 has 144 divisors (see below), whose sum is σ = 225212400. Its totient is φ = 23569920.

The previous prime is 73897027. The next prime is 73897063. The reversal of 73897056 is 65079837.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 830260 + ... + 830348.

It is an arithmetic number, because the mean of its divisors is an integer number (1563975).

Almost surely, 2^73897056 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 73897056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112606200).

73897056 is an abundant number, since it is smaller than the sum of its proper divisors (151315344).

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

73897056 is a wasteful number, since it uses less digits than its factorization.

73897056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 73897056 is about 8596.3396861688. The cubic root of 73897056 is about 419.6388732565.

The spelling of 73897056 in words is "seventy-three million, eight hundred ninety-seven thousand, fifty-six".