82875761 has 4 divisors (see below), whose sum is σ = 83011572. Its totient is φ = 82739952.

The previous prime is 82875743. The next prime is 82875769. The reversal of 82875761 is 16757828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 79834225 = 1744^2 + 8935^2 .

It is a cyclic number.

It is not a de Polignac number, because 82875761 - 2¹⁸ = 82613617 is a prime.

It is a super-2 number, since 2×82875761² = 13736783522658242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82875769) 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, 66986 + ... + 68211.

It is an arithmetic number, because the mean of its divisors is an integer number (20752893).

Almost surely, 2^82875761 is an apocalyptic number.

It is an amenable number.

82875761 is a deficient number, since it is larger than the sum of its proper divisors (135811).

82875761 is a wasteful number, since it uses less digits than its factorization.

82875761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135810.

The product of its digits is 188160, while the sum is 44.

The square root of 82875761 is about 9103.6125247069. The cubic root of 82875761 is about 435.9893121556.

The spelling of 82875761 in words is "eighty-two million, eight hundred seventy-five thousand, seven hundred sixty-one".