80627429 has 2 divisors, whose sum is σ = 80627430. Its totient is φ = 80627428.

The previous prime is 80627423. The next prime is 80627471. The reversal of 80627429 is 92472608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66863329 + 13764100 = 8177^2 + 3710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80627429 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80627392 and 80627401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80627423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40313714 + 40313715.

It is an arithmetic number, because the mean of its divisors is an integer number (40313715).

Almost surely, 2^80627429 is an apocalyptic number.

It is an amenable number.

80627429 is a deficient number, since it is larger than the sum of its proper divisors (1).

80627429 is an equidigital number, since it uses as much as digits as its factorization.

80627429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 80627429 is about 8979.2777549199. The cubic root of 80627429 is about 432.0104682106.

The spelling of 80627429 in words is "eighty million, six hundred twenty-seven thousand, four hundred twenty-nine".