80443633 has 2 divisors, whose sum is σ = 80443634. Its totient is φ = 80443632.

The previous prime is 80443621. The next prime is 80443637. The reversal of 80443633 is 33634408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79709184 + 734449 = 8928^2 + 857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80443633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80443595 and 80443604.

It is not a weakly prime, because it can be changed into another prime (80443637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40221816 + 40221817.

It is an arithmetic number, because the mean of its divisors is an integer number (40221817).

Almost surely, 2^80443633 is an apocalyptic number.

It is an amenable number.

80443633 is a deficient number, since it is larger than the sum of its proper divisors (1).

80443633 is an equidigital number, since it uses as much as digits as its factorization.

80443633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 80443633 is about 8969.0374622921. The cubic root of 80443633 is about 431.6819521892.

The spelling of 80443633 in words is "eighty million, four hundred forty-three thousand, six hundred thirty-three".