80445349 has 2 divisors, whose sum is σ = 80445350. Its totient is φ = 80445348.

The previous prime is 80445317. The next prime is 80445371. The reversal of 80445349 is 94354408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78322500 + 2122849 = 8850^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 80445349 - 2⁵ = 80445317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80445049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40222674 + 40222675.

It is an arithmetic number, because the mean of its divisors is an integer number (40222675).

Almost surely, 2^80445349 is an apocalyptic number.

It is an amenable number.

80445349 is a deficient number, since it is larger than the sum of its proper divisors (1).

80445349 is an equidigital number, since it uses as much as digits as its factorization.

80445349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 80445349 is about 8969.1331242211. The cubic root of 80445349 is about 431.6850216716.

The spelling of 80445349 in words is "eighty million, four hundred forty-five thousand, three hundred forty-nine".