82681383 has 4 divisors (see below), whose sum is σ = 110241848. Its totient is φ = 55120920.

The previous prime is 82681367. The next prime is 82681411. The reversal of 82681383 is 38318628.

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

It is not a de Polignac number, because 82681383 - 2⁴ = 82681367 is a prime.

It is a super-2 number, since 2×82681383² = 13672422189585378, 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 (82681583) 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, 13780228 + ... + 13780233.

It is an arithmetic number, because the mean of its divisors is an integer number (27560462).

Almost surely, 2^82681383 is an apocalyptic number.

82681383 is a deficient number, since it is larger than the sum of its proper divisors (27560465).

82681383 is a wasteful number, since it uses less digits than its factorization.

82681383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27560464.

The product of its digits is 55296, while the sum is 39.

The square root of 82681383 is about 9092.9303857447. The cubic root of 82681383 is about 435.6481867917.

The spelling of 82681383 in words is "eighty-two million, six hundred eighty-one thousand, three hundred eighty-three".