82961539 has 2 divisors, whose sum is σ = 82961540. Its totient is φ = 82961538.

The previous prime is 82961537. The next prime is 82961551. The reversal of 82961539 is 93516928.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82961539 - 2¹ = 82961537 is a prime.

Together with 82961537, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 82961495 and 82961504.

It is not a weakly prime, because it can be changed into another prime (82961537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41480769 + 41480770.

It is an arithmetic number, because the mean of its divisors is an integer number (41480770).

Almost surely, 2^82961539 is an apocalyptic number.

82961539 is a deficient number, since it is larger than the sum of its proper divisors (1).

82961539 is an equidigital number, since it uses as much as digits as its factorization.

82961539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 82961539 is about 9108.3225129548. The cubic root of 82961539 is about 436.1396793861.

The spelling of 82961539 in words is "eighty-two million, nine hundred sixty-one thousand, five hundred thirty-nine".