82813727 has 4 divisors (see below), whose sum is σ = 84833616. Its totient is φ = 80793840.

The previous prime is 82813721. The next prime is 82813769. The reversal of 82813727 is 72731828.

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 82813727 - 2⁴ = 82813711 is a prime.

It is a super-2 number, since 2×82813727² = 13716226759261058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82813721) 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, 1009883 + ... + 1009964.

It is an arithmetic number, because the mean of its divisors is an integer number (21208404).

Almost surely, 2^82813727 is an apocalyptic number.

82813727 is a deficient number, since it is larger than the sum of its proper divisors (2019889).

82813727 is a wasteful number, since it uses less digits than its factorization.

82813727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019888.

The product of its digits is 37632, while the sum is 38.

The square root of 82813727 is about 9100.2047779157. The cubic root of 82813727 is about 435.8805030513.

The spelling of 82813727 in words is "eighty-two million, eight hundred thirteen thousand, seven hundred twenty-seven".