83575640 has 16 divisors (see below), whose sum is σ = 188045280. Its totient is φ = 33430240.

The previous prime is 83575633. The next prime is 83575669. The reversal of 83575640 is 4657538.

It is a junction number, because it is equal to n+sod(n) for n = 83575594 and 83575603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044656 + ... + 1044735.

It is an arithmetic number, because the mean of its divisors is an integer number (11752830).

Almost surely, 2^83575640 is an apocalyptic number.

It is an amenable number.

83575640 is an abundant number, since it is smaller than the sum of its proper divisors (104469640).

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

83575640 is a wasteful number, since it uses less digits than its factorization.

83575640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089402 (or 2089398 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 83575640 is about 9141.9713410183. The cubic root of 83575640 is about 437.2131714498.

The spelling of 83575640 in words is "eighty-three million, five hundred seventy-five thousand, six hundred forty".