69982321 has 4 divisors (see below), whose sum is σ = 70075044. Its totient is φ = 69889600.

The previous prime is 69982291. The next prime is 69982333. The reversal of 69982321 is 12328996.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 62583921 = 2720^2 + 7911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69982321 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69982351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45220 + ... + 46741.

It is an arithmetic number, because the mean of its divisors is an integer number (17518761).

Almost surely, 2^69982321 is an apocalyptic number.

It is an amenable number.

69982321 is a deficient number, since it is larger than the sum of its proper divisors (92723).

69982321 is an equidigital number, since it uses as much as digits as its factorization.

69982321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92722.

The product of its digits is 46656, while the sum is 40.

The square root of 69982321 is about 8365.5436762950. The cubic root of 69982321 is about 412.0938317249.

The spelling of 69982321 in words is "sixty-nine million, nine hundred eighty-two thousand, three hundred twenty-one".