83128304 has 30 divisors (see below), whose sum is σ = 187358544. Its totient is φ = 35626080.

The previous prime is 83128301. The next prime is 83128319. The reversal of 83128304 is 40382138.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83128301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52232 + ... + 53799.

Almost surely, 2^83128304 is an apocalyptic number.

It is an amenable number.

83128304 is an abundant number, since it is smaller than the sum of its proper divisors (104230240).

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

83128304 is a wasteful number, since it uses less digits than its factorization.

83128304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106053 (or 106040 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83128304 is about 9117.4724567722. The cubic root of 83128304 is about 436.4317189435.

The spelling of 83128304 in words is "eighty-three million, one hundred twenty-eight thousand, three hundred four".