82975849 has 4 divisors (see below), whose sum is σ = 90519120. Its totient is φ = 75432580.

The previous prime is 82975819. The next prime is 82975891. The reversal of 82975849 is 94857928.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82975849 - 2⁷ = 82975721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82975796 and 82975805.

It is not an unprimeable number, because it can be changed into a prime (82975819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3771619 + ... + 3771640.

It is an arithmetic number, because the mean of its divisors is an integer number (22629780).

Almost surely, 2^82975849 is an apocalyptic number.

It is an amenable number.

82975849 is a deficient number, since it is larger than the sum of its proper divisors (7543271).

82975849 is a wasteful number, since it uses less digits than its factorization.

82975849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7543270.

The product of its digits is 1451520, while the sum is 52.

The square root of 82975849 is about 9109.1080243897. The cubic root of 82975849 is about 436.1647544594.

The spelling of 82975849 in words is "eighty-two million, nine hundred seventy-five thousand, eight hundred forty-nine".