83693128 has 8 divisors (see below), whose sum is σ = 156924630. Its totient is φ = 41846560.

The previous prime is 83693069. The next prime is 83693131. The reversal of 83693128 is 82139638.

It can be written as a sum of positive squares in only one way, i.e., 83576164 + 116964 = 9142^2 + 342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5230813 + ... + 5230828.

Almost surely, 2^83693128 is an apocalyptic number.

It is an amenable number.

83693128 is a deficient number, since it is larger than the sum of its proper divisors (73231502).

83693128 is a wasteful number, since it uses less digits than its factorization.

83693128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461647 (or 10461643 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 83693128 is about 9148.3948318817. The cubic root of 83693128 is about 437.4179490209.

The spelling of 83693128 in words is "eighty-three million, six hundred ninety-three thousand, one hundred twenty-eight".