83112775 has 12 divisors (see below), whose sum is σ = 103435344. Its totient is φ = 66248000.

The previous prime is 83112749. The next prime is 83112857. The reversal of 83112775 is 57721138.

It is a de Polignac number, because none of the positive numbers 2^k-83112775 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83112775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1110 + ... + 12940.

It is an arithmetic number, because the mean of its divisors is an integer number (8619612).

Almost surely, 2^83112775 is an apocalyptic number.

83112775 is a deficient number, since it is larger than the sum of its proper divisors (20322569).

83112775 is a wasteful number, since it uses less digits than its factorization.

83112775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122 (or 12117 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 83112775 is about 9116.6208103661. The cubic root of 83112775 is about 436.4045409953.

The spelling of 83112775 in words is "eighty-three million, one hundred twelve thousand, seven hundred seventy-five".