82481321 has 8 divisors (see below), whose sum is σ = 89275200. Its totient is φ = 75751632.

The previous prime is 82481317. The next prime is 82481341. The reversal of 82481321 is 12318428.

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 82481321 - 2² = 82481317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82481341) 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, 13355 + ... + 18528.

It is an arithmetic number, because the mean of its divisors is an integer number (11159400).

Almost surely, 2^82481321 is an apocalyptic number.

It is an amenable number.

82481321 is a deficient number, since it is larger than the sum of its proper divisors (6793879).

82481321 is a wasteful number, since it uses less digits than its factorization.

82481321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32095.

The product of its digits is 3072, while the sum is 29.

The square root of 82481321 is about 9081.9227589757. The cubic root of 82481321 is about 435.2965274623.

Adding to 82481321 its reverse (12318428), we get a palindrome (94799749).

The spelling of 82481321 in words is "eighty-two million, four hundred eighty-one thousand, three hundred twenty-one".