82381983 has 8 divisors (see below), whose sum is σ = 116304048. Its totient is φ = 51690624.

The previous prime is 82381933. The next prime is 82382059. The reversal of 82381983 is 38918328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82381983 - 2¹⁷ = 82250911 is a prime.

It is a super-2 number, since 2×82381983² = 13573582246024578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82381933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807616 + ... + 807717.

It is an arithmetic number, because the mean of its divisors is an integer number (14538006).

Almost surely, 2^82381983 is an apocalyptic number.

82381983 is a deficient number, since it is larger than the sum of its proper divisors (33922065).

82381983 is a wasteful number, since it uses less digits than its factorization.

82381983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615353.

The product of its digits is 82944, while the sum is 42.

The square root of 82381983 is about 9076.4521152265. The cubic root of 82381983 is about 435.1217046171.

The spelling of 82381983 in words is "eighty-two million, three hundred eighty-one thousand, nine hundred eighty-three".