82697877 has 12 divisors (see below), whose sum is σ = 126479340. Its totient is φ = 51888768.

The previous prime is 82697789. The next prime is 82697897. The reversal of 82697877 is 77879628.

It can be written as a sum of positive squares in 2 ways, for example, as 69455556 + 13242321 = 8334^2 + 3639^2 .

It is not a de Polignac number, because 82697877 - 2⁷ = 82697749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82697897) 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, 270102 + ... + 270407.

It is an arithmetic number, because the mean of its divisors is an integer number (10539945).

Almost surely, 2^82697877 is an apocalyptic number.

It is an amenable number.

82697877 is a deficient number, since it is larger than the sum of its proper divisors (43781463).

82697877 is a wasteful number, since it uses less digits than its factorization.

82697877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540532 (or 540529 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 82697877 is about 9093.8373088592. The cubic root of 82697877 is about 435.6771538263.

The spelling of 82697877 in words is "eighty-two million, six hundred ninety-seven thousand, eight hundred seventy-seven".