82113727 has 4 divisors (see below), whose sum is σ = 82567576. Its totient is φ = 81659880.

The previous prime is 82113697. The next prime is 82113739. The reversal of 82113727 is 72731128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82113727 - 2⁷ = 82113599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82113127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226653 + ... + 227014.

It is an arithmetic number, because the mean of its divisors is an integer number (20641894).

Almost surely, 2^82113727 is an apocalyptic number.

82113727 is a deficient number, since it is larger than the sum of its proper divisors (453849).

82113727 is a wasteful number, since it uses less digits than its factorization.

82113727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453848.

The product of its digits is 4704, while the sum is 31.

The square root of 82113727 is about 9061.6624854383. The cubic root of 82113727 is about 434.6489032939.

The spelling of 82113727 in words is "eighty-two million, one hundred thirteen thousand, seven hundred twenty-seven".