82169757 has 12 divisors (see below), whose sum is σ = 119052544. Its totient is φ = 54612360.

The previous prime is 82169741. The next prime is 82169761. The reversal of 82169757 is 75796128.

It is not a de Polignac number, because 82169757 - 2⁴ = 82169741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82169797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10813 + ... + 16770.

Almost surely, 2^82169757 is an apocalyptic number.

It is an amenable number.

82169757 is a deficient number, since it is larger than the sum of its proper divisors (36882787).

82169757 is a wasteful number, since it uses less digits than its factorization.

82169757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27920 (or 27917 counting only the distinct ones).

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

The square root of 82169757 is about 9064.7535542893. The cubic root of 82169757 is about 434.7477411776.

The spelling of 82169757 in words is "eighty-two million, one hundred sixty-nine thousand, seven hundred fifty-seven".