82964681 has 2 divisors, whose sum is σ = 82964682. Its totient is φ = 82964680.

The previous prime is 82964677. The next prime is 82964683. The reversal of 82964681 is 18646928.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 6996025 = 8716^2 + 2645^2 .

It is a cyclic number.

It is not a de Polignac number, because 82964681 - 2² = 82964677 is a prime.

It is a super-2 number, since 2×82964681² = 13766276586863522, which contains 22 as substring.

Together with 82964683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82964683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41482340 + 41482341.

It is an arithmetic number, because the mean of its divisors is an integer number (41482341).

Almost surely, 2^82964681 is an apocalyptic number.

It is an amenable number.

82964681 is a deficient number, since it is larger than the sum of its proper divisors (1).

82964681 is an equidigital number, since it uses as much as digits as its factorization.

82964681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 82964681 is about 9108.4949909411. The cubic root of 82964681 is about 436.1451852852.

The spelling of 82964681 in words is "eighty-two million, nine hundred sixty-four thousand, six hundred eighty-one".