82195761 has 8 divisors (see below), whose sum is σ = 109645600. Its totient is φ = 54771552.

The previous prime is 82195741. The next prime is 82195769. The reversal of 82195761 is 16759128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82195761 - 2⁹ = 82195249 is a prime.

It is a super-2 number, since 2×82195761² = 13512286252738242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82195769) 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 7 ways as a sum of consecutive naturals, for example, 3090 + ... + 13188.

It is an arithmetic number, because the mean of its divisors is an integer number (13705700).

Almost surely, 2^82195761 is an apocalyptic number.

It is an amenable number.

82195761 is a deficient number, since it is larger than the sum of its proper divisors (27449839).

82195761 is a wasteful number, since it uses less digits than its factorization.

82195761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12815.

The product of its digits is 30240, while the sum is 39.

The square root of 82195761 is about 9066.1877875985. The cubic root of 82195761 is about 434.7935974160.

The spelling of 82195761 in words is "eighty-two million, one hundred ninety-five thousand, seven hundred sixty-one".