83999028 has 24 divisors (see below), whose sum is σ = 201296032. Its totient is φ = 27242784.

The previous prime is 83999021. The next prime is 83999029. The reversal of 83999028 is 82099938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83999021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94150 + ... + 95037.

Almost surely, 2^83999028 is an apocalyptic number.

It is an amenable number.

83999028 is an abundant number, since it is smaller than the sum of its proper divisors (117297004).

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

83999028 is a wasteful number, since it uses less digits than its factorization.

83999028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189231 (or 189229 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 83999028 is about 9165.0983628110. The cubic root of 83999028 is about 437.9502247392.

The spelling of 83999028 in words is "eighty-three million, nine hundred ninety-nine thousand, twenty-eight".