80563429 has 2 divisors, whose sum is σ = 80563430. Its totient is φ = 80563428.

The previous prime is 80563367. The next prime is 80563471. The reversal of 80563429 is 92436508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72165025 + 8398404 = 8495^2 + 2898^2 .

It is a cyclic number.

It is not a de Polignac number, because 80563429 - 2²¹ = 78466277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80563229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40281714 + 40281715.

It is an arithmetic number, because the mean of its divisors is an integer number (40281715).

Almost surely, 2^80563429 is an apocalyptic number.

It is an amenable number.

80563429 is a deficient number, since it is larger than the sum of its proper divisors (1).

80563429 is an equidigital number, since it uses as much as digits as its factorization.

80563429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 80563429 is about 8975.7132864191. The cubic root of 80563429 is about 431.8961316498.

The spelling of 80563429 in words is "eighty million, five hundred sixty-three thousand, four hundred twenty-nine".