82049647 has 2 divisors, whose sum is σ = 82049648. Its totient is φ = 82049646.

The previous prime is 82049621. The next prime is 82049663. The reversal of 82049647 is 74694028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82049647 - 2⁷ = 82049519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82049677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41024823 + 41024824.

It is an arithmetic number, because the mean of its divisors is an integer number (41024824).

Almost surely, 2^82049647 is an apocalyptic number.

82049647 is a deficient number, since it is larger than the sum of its proper divisors (1).

82049647 is an equidigital number, since it uses as much as digits as its factorization.

82049647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 82049647 is about 9058.1260203201. The cubic root of 82049647 is about 434.5358099415.

The spelling of 82049647 in words is "eighty-two million, forty-nine thousand, six hundred forty-seven".