82115064 has 24 divisors (see below), whose sum is σ = 222395160. Its totient is φ = 27371664.

The previous prime is 82115057. The next prime is 82115071. The reversal of 82115064 is 46051128.

It is an interprime number because it is at equal distance from previous prime (82115057) and next prime (82115071).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 570172 + ... + 570315.

It is an arithmetic number, because the mean of its divisors is an integer number (9266465).

Almost surely, 2^82115064 is an apocalyptic number.

It is an amenable number.

82115064 is an abundant number, since it is smaller than the sum of its proper divisors (140280096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82115064 is a wasteful number, since it uses less digits than its factorization.

82115064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140499 (or 1140492 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 82115064 is about 9061.7362574730. The cubic root of 82115064 is about 434.6512623085.

The spelling of 82115064 in words is "eighty-two million, one hundred fifteen thousand, sixty-four".