82646413 has 2 divisors, whose sum is σ = 82646414. Its totient is φ = 82646412.

The previous prime is 82646411. The next prime is 82646441. The reversal of 82646413 is 31464628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48692484 + 33953929 = 6978^2 + 5827^2 .

It is a cyclic number.

It is not a de Polignac number, because 82646413 - 2¹ = 82646411 is a prime.

Together with 82646411, it forms a pair of twin primes.

It is equal to p_4814836 and since 82646413 and 4814836 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82646411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41323206 + 41323207.

It is an arithmetic number, because the mean of its divisors is an integer number (41323207).

Almost surely, 2^82646413 is an apocalyptic number.

It is an amenable number.

82646413 is a deficient number, since it is larger than the sum of its proper divisors (1).

82646413 is an equidigital number, since it uses as much as digits as its factorization.

82646413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 34.

The square root of 82646413 is about 9091.0072599245. The cubic root of 82646413 is about 435.5867591568.

The spelling of 82646413 in words is "eighty-two million, six hundred forty-six thousand, four hundred thirteen".