82536431 has 2 divisors, whose sum is σ = 82536432. Its totient is φ = 82536430.

The previous prime is 82536401. The next prime is 82536473. The reversal of 82536431 is 13463528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82536431 - 2¹⁰ = 82535407 is a prime.

It is a super-2 number, since 2×82536431² = 13624524884435522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82536401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41268215 + 41268216.

It is an arithmetic number, because the mean of its divisors is an integer number (41268216).

Almost surely, 2^82536431 is an apocalyptic number.

82536431 is a deficient number, since it is larger than the sum of its proper divisors (1).

82536431 is an equidigital number, since it uses as much as digits as its factorization.

82536431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 82536431 is about 9084.9563014909. The cubic root of 82536431 is about 435.3934538554.

Adding to 82536431 its reverse (13463528), we get a palindrome (95999959).

The spelling of 82536431 in words is "eighty-two million, five hundred thirty-six thousand, four hundred thirty-one".