82081379 has 2 divisors, whose sum is σ = 82081380. Its totient is φ = 82081378.

The previous prime is 82081369. The next prime is 82081381. The reversal of 82081379 is 97318028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82081379 - 2²⁰ = 81032803 is a prime.

Together with 82081381, 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 (82081309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41040689 + 41040690.

It is an arithmetic number, because the mean of its divisors is an integer number (41040690).

Almost surely, 2^82081379 is an apocalyptic number.

82081379 is a deficient number, since it is larger than the sum of its proper divisors (1).

82081379 is an equidigital number, since it uses as much as digits as its factorization.

82081379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 82081379 is about 9059.8774274269. The cubic root of 82081379 is about 434.5918203923.

The spelling of 82081379 in words is "eighty-two million, eighty-one thousand, three hundred seventy-nine".