82069321 has 8 divisors (see below), whose sum is σ = 83843424. Its totient is φ = 80314080.

The previous prime is 82069291. The next prime is 82069363. The reversal of 82069321 is 12396028.

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 82069321 - 2⁵ = 82069289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82069621) 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, 4261 + ... + 13501.

It is an arithmetic number, because the mean of its divisors is an integer number (10480428).

Almost surely, 2^82069321 is an apocalyptic number.

It is an amenable number.

82069321 is a deficient number, since it is larger than the sum of its proper divisors (1774103).

82069321 is a wasteful number, since it uses less digits than its factorization.

82069321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9431.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 82069321 is about 9059.2119414439. The cubic root of 82069321 is about 434.5705384042.

The spelling of 82069321 in words is "eighty-two million, sixty-nine thousand, three hundred twenty-one".