82321388 has 12 divisors (see below), whose sum is σ = 144133752. Its totient is φ = 41140320.

The previous prime is 82321373. The next prime is 82321409. The reversal of 82321388 is 88312328.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7403 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (12011146).

Almost surely, 2^82321388 is an apocalyptic number.

It is an amenable number.

82321388 is a deficient number, since it is larger than the sum of its proper divisors (61812364).

82321388 is a wasteful number, since it uses less digits than its factorization.

82321388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192 (or 10190 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 82321388 is about 9073.1134678235. The cubic root of 82321388 is about 435.0149957397.

The spelling of 82321388 in words is "eighty-two million, three hundred twenty-one thousand, three hundred eighty-eight".