83985575 has 6 divisors (see below), whose sum is σ = 104142144. Its totient is φ = 67188440.

The previous prime is 83985571. The next prime is 83985599. The reversal of 83985575 is 57558938.

It is not a de Polignac number, because 83985575 - 2² = 83985571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83985571) 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, 1679687 + ... + 1679736.

It is an arithmetic number, because the mean of its divisors is an integer number (17357024).

Almost surely, 2^83985575 is an apocalyptic number.

83985575 is a deficient number, since it is larger than the sum of its proper divisors (20156569).

83985575 is a wasteful number, since it uses less digits than its factorization.

83985575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359433 (or 3359428 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 50.

The square root of 83985575 is about 9164.3644078572. The cubic root of 83985575 is about 437.9268432824.

The spelling of 83985575 in words is "eighty-three million, nine hundred eighty-five thousand, five hundred seventy-five".