83861128 has 32 divisors (see below), whose sum is σ = 176702400. Its totient is φ = 37021248.

The previous prime is 83861111. The next prime is 83861147. The reversal of 83861128 is 82116838.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15138 + ... + 19921.

It is an arithmetic number, because the mean of its divisors is an integer number (5521950).

Almost surely, 2^83861128 is an apocalyptic number.

It is an amenable number.

83861128 is an abundant number, since it is smaller than the sum of its proper divisors (92841272).

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

83861128 is a wasteful number, since it uses less digits than its factorization.

83861128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35101 (or 35097 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 83861128 is about 9157.5721673378. The cubic root of 83861128 is about 437.7104346029.

The spelling of 83861128 in words is "eighty-three million, eight hundred sixty-one thousand, one hundred twenty-eight".