82438533 has 8 divisors (see below), whose sum is σ = 122131200. Its totient is φ = 54959004.

The previous prime is 82438519. The next prime is 82438541. The reversal of 82438533 is 33583428.

82438533 is a `hidden beast` number, since 82 + 43 + 8 + 533 = 666.

It is not a de Polignac number, because 82438533 - 2⁵ = 82438501 is a prime.

It is a super-2 number, since 2×82438533² = 13592223446384178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82438513) 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, 1526613 + ... + 1526666.

It is an arithmetic number, because the mean of its divisors is an integer number (15266400).

Almost surely, 2^82438533 is an apocalyptic number.

It is an amenable number.

82438533 is a deficient number, since it is larger than the sum of its proper divisors (39692667).

82438533 is a wasteful number, since it uses less digits than its factorization.

82438533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053288 (or 3053282 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 82438533 is about 9079.5667848196. The cubic root of 82438533 is about 435.2212429849.

The spelling of 82438533 in words is "eighty-two million, four hundred thirty-eight thousand, five hundred thirty-three".