83986775 has 6 divisors (see below), whose sum is σ = 104143632. Its totient is φ = 67189400.

The previous prime is 83986769. The next prime is 83986801. The reversal of 83986775 is 57768938.

It is not a de Polignac number, because 83986775 - 2⁸ = 83986519 is a prime.

It is a super-3 number, since 3×83986775³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1679711 + ... + 1679760.

It is an arithmetic number, because the mean of its divisors is an integer number (17357272).

Almost surely, 2^83986775 is an apocalyptic number.

83986775 is a deficient number, since it is larger than the sum of its proper divisors (20156857).

83986775 is a wasteful number, since it uses less digits than its factorization.

83986775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359481 (or 3359476 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The square root of 83986775 is about 9164.4298786122. The cubic root of 83986775 is about 437.9289289965.

The spelling of 83986775 in words is "eighty-three million, nine hundred eighty-six thousand, seven hundred seventy-five".