82436447 has 2 divisors, whose sum is σ = 82436448. Its totient is φ = 82436446.

The previous prime is 82436441. The next prime is 82436477. The reversal of 82436447 is 74463428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82436447 - 2¹² = 82432351 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82436447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82436441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41218223 + 41218224.

It is an arithmetic number, because the mean of its divisors is an integer number (41218224).

Almost surely, 2^82436447 is an apocalyptic number.

82436447 is a deficient number, since it is larger than the sum of its proper divisors (1).

82436447 is an equidigital number, since it uses as much as digits as its factorization.

82436447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 38.

The square root of 82436447 is about 9079.4519107708. The cubic root of 82436447 is about 435.2175720511.

The spelling of 82436447 in words is "eighty-two million, four hundred thirty-six thousand, four hundred forty-seven".