82678567 has 2 divisors, whose sum is σ = 82678568. Its totient is φ = 82678566.

The previous prime is 82678549. The next prime is 82678619. The reversal of 82678567 is 76587628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82678567 - 2⁷ = 82678439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82678567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82678867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41339283 + 41339284.

It is an arithmetic number, because the mean of its divisors is an integer number (41339284).

Almost surely, 2^82678567 is an apocalyptic number.

82678567 is a deficient number, since it is larger than the sum of its proper divisors (1).

82678567 is an equidigital number, since it uses as much as digits as its factorization.

82678567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 82678567 is about 9092.7755388550. The cubic root of 82678567 is about 435.6432409011.

The spelling of 82678567 in words is "eighty-two million, six hundred seventy-eight thousand, five hundred sixty-seven".