80629 has 2 divisors, whose sum is σ = 80630. Its totient is φ = 80628.

The previous prime is 80627. The next prime is 80651. The reversal of 80629 is 92608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70225 + 10404 = 265^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 80629 - 2¹ = 80627 is a prime.

Together with 80627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40314 + 40315.

It is an arithmetic number, because the mean of its divisors is an integer number (40315).

2⁸⁰⁶²⁹ is an apocalyptic number.

It is an amenable number.

80629 is a deficient number, since it is larger than the sum of its proper divisors (1).

80629 is an equidigital number, since it uses as much as digits as its factorization.

80629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 80629 is about 283.9524608099. The cubic root of 80629 is about 43.2013274055.

The spelling of 80629 in words is "eighty thousand, six hundred twenty-nine".