82698613 has 2 divisors, whose sum is σ = 82698614. Its totient is φ = 82698612.

The previous prime is 82698587. The next prime is 82698617. The reversal of 82698613 is 31689628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82047364 + 651249 = 9058^2 + 807^2 .

It is a cyclic number.

It is not a de Polignac number, because 82698613 - 2⁹ = 82698101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82698613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82698617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41349306 + 41349307.

It is an arithmetic number, because the mean of its divisors is an integer number (41349307).

Almost surely, 2^82698613 is an apocalyptic number.

It is an amenable number.

82698613 is a deficient number, since it is larger than the sum of its proper divisors (1).

82698613 is an equidigital number, since it uses as much as digits as its factorization.

82698613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 82698613 is about 9093.8777757346. The cubic root of 82698613 is about 435.6784463118.

The spelling of 82698613 in words is "eighty-two million, six hundred ninety-eight thousand, six hundred thirteen".