82064549 has 4 divisors (see below), whose sum is σ = 93788064. Its totient is φ = 70341036.

The previous prime is 82064537. The next prime is 82064639. The reversal of 82064549 is 94546028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82064549 - 2¹⁶ = 81999013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82069549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5861747 + ... + 5861760.

It is an arithmetic number, because the mean of its divisors is an integer number (23447016).

Almost surely, 2^82064549 is an apocalyptic number.

It is an amenable number.

82064549 is a deficient number, since it is larger than the sum of its proper divisors (11723515).

82064549 is a wasteful number, since it uses less digits than its factorization.

82064549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723514.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 82064549 is about 9058.9485592976. The cubic root of 82064549 is about 434.5621153996.

The spelling of 82064549 in words is "eighty-two million, sixty-four thousand, five hundred forty-nine".