83865472 has 32 divisors (see below), whose sum is σ = 168636600. Its totient is φ = 41541120.

The previous prime is 83865469. The next prime is 83865473. The reversal of 83865472 is 27456838.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83865473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10947 + ... + 16957.

Almost surely, 2^83865472 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 83865472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84318300).

83865472 is an abundant number, since it is smaller than the sum of its proper divisors (84771128).

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

83865472 is a wasteful number, since it uses less digits than its factorization.

83865472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134 (or 6122 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 83865472 is about 9157.8093450344. The cubic root of 83865472 is about 437.7179922613.

The spelling of 83865472 in words is "eighty-three million, eight hundred sixty-five thousand, four hundred seventy-two".