82697013 has 24 divisors (see below), whose sum is σ = 139097088. Its totient is φ = 46361952.

The previous prime is 82697011. The next prime is 82697023. The reversal of 82697013 is 31079628.

It is not a de Polignac number, because 82697013 - 2¹ = 82697011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82697011) 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 23 ways as a sum of consecutive naturals, for example, 9045 + ... + 15722.

It is an arithmetic number, because the mean of its divisors is an integer number (5795712).

Almost surely, 2^82697013 is an apocalyptic number.

It is an amenable number.

82697013 is a deficient number, since it is larger than the sum of its proper divisors (56400075).

82697013 is a wasteful number, since it uses less digits than its factorization.

82697013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24833 (or 24830 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 82697013 is about 9093.7898040366. The cubic root of 82697013 is about 435.6756365508.

The spelling of 82697013 in words is "eighty-two million, six hundred ninety-seven thousand, thirteen".