82495643 has 2 divisors, whose sum is σ = 82495644. Its totient is φ = 82495642.

The previous prime is 82495639. The next prime is 82495657. The reversal of 82495643 is 34659428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82495643 - 2² = 82495639 is a prime.

It is a super-2 number, since 2×82495643² = 13611062227966898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82495643.

It is not a weakly prime, because it can be changed into another prime (82495603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41247821 + 41247822.

It is an arithmetic number, because the mean of its divisors is an integer number (41247822).

Almost surely, 2^82495643 is an apocalyptic number.

82495643 is a deficient number, since it is larger than the sum of its proper divisors (1).

82495643 is an equidigital number, since it uses as much as digits as its factorization.

82495643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 82495643 is about 9082.7112141695. The cubic root of 82495643 is about 435.3217208677.

It can be divided in two parts, 82495 and 643, that added together give a palindrome (83138).

The spelling of 82495643 in words is "eighty-two million, four hundred ninety-five thousand, six hundred forty-three".