80339221 has 2 divisors, whose sum is σ = 80339222. Its totient is φ = 80339220.

The previous prime is 80339209. The next prime is 80339261. The reversal of 80339221 is 12293308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69906321 + 10432900 = 8361^2 + 3230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80339221 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80339221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80339261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40169610 + 40169611.

It is an arithmetic number, because the mean of its divisors is an integer number (40169611).

Almost surely, 2^80339221 is an apocalyptic number.

It is an amenable number.

80339221 is a deficient number, since it is larger than the sum of its proper divisors (1).

80339221 is an equidigital number, since it uses as much as digits as its factorization.

80339221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 80339221 is about 8963.2148808338. The cubic root of 80339221 is about 431.4951037954.

The spelling of 80339221 in words is "eighty million, three hundred thirty-nine thousand, two hundred twenty-one".