82975761 has 12 divisors (see below), whose sum is σ = 130749840. Its totient is φ = 50288280.

The previous prime is 82975751. The next prime is 82975777. The reversal of 82975761 is 16757928.

It is not a de Polignac number, because 82975761 - 2⁵ = 82975729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82975721) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 418971 + ... + 419168.

It is an arithmetic number, because the mean of its divisors is an integer number (10895820).

Almost surely, 2^82975761 is an apocalyptic number.

It is an amenable number.

82975761 is a deficient number, since it is larger than the sum of its proper divisors (47774079).

82975761 is a wasteful number, since it uses less digits than its factorization.

82975761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838156 (or 838153 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 82975761 is about 9109.1031940581. The cubic root of 82975761 is about 436.1646002679.

The spelling of 82975761 in words is "eighty-two million, nine hundred seventy-five thousand, seven hundred sixty-one".