82135393 has 8 divisors (see below), whose sum is σ = 83497856. Its totient is φ = 80784000.

The previous prime is 82135387. The next prime is 82135397. The reversal of 82135393 is 39353128.

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

It is a cyclic number.

It is not a de Polignac number, because 82135393 - 2⁹ = 82134881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82135397) 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, 12913 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (10437232).

Almost surely, 2^82135393 is an apocalyptic number.

It is an amenable number.

82135393 is a deficient number, since it is larger than the sum of its proper divisors (1362463).

82135393 is a wasteful number, since it uses less digits than its factorization.

82135393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535.

The product of its digits is 19440, while the sum is 34.

The square root of 82135393 is about 9062.8578825887. The cubic root of 82135393 is about 434.6871278205.

It can be divided in two parts, 82135 and 393, that added together give a palindrome (82528).

The spelling of 82135393 in words is "eighty-two million, one hundred thirty-five thousand, three hundred ninety-three".