83128446 has 12 divisors (see below), whose sum is σ = 180111672. Its totient is φ = 27709476.

The previous prime is 83128429. The next prime is 83128447. The reversal of 83128446 is 64482138.

It is a super-3 number, since 3×83128446³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83128446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83128447) 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, 2309106 + ... + 2309141.

It is an arithmetic number, because the mean of its divisors is an integer number (15009306).

Almost surely, 2^83128446 is an apocalyptic number.

83128446 is an abundant number, since it is smaller than the sum of its proper divisors (96983226).

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

83128446 is a wasteful number, since it uses less digits than its factorization.

83128446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618255 (or 4618252 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 83128446 is about 9117.4802440148. The cubic root of 83128446 is about 436.4319674480.

The spelling of 83128446 in words is "eighty-three million, one hundred twenty-eight thousand, four hundred forty-six".