83674728 has 64 divisors (see below), whose sum is σ = 234748800. Its totient is φ = 27613440.

The previous prime is 83674691. The next prime is 83674769. The reversal of 83674728 is 82747638.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20368 + ... + 24128.

It is an arithmetic number, because the mean of its divisors is an integer number (3667950).

Almost surely, 2^83674728 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 83674728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117374400).

83674728 is an abundant number, since it is smaller than the sum of its proper divisors (151074072).

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

83674728 is a wasteful number, since it uses less digits than its factorization.

83674728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3869 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 83674728 is about 9147.3891357042. The cubic root of 83674728 is about 437.3858911114.

The spelling of 83674728 in words is "eighty-three million, six hundred seventy-four thousand, seven hundred twenty-eight".