80530829 has 2 divisors, whose sum is σ = 80530830. Its totient is φ = 80530828.

The previous prime is 80530817. The next prime is 80530837. The reversal of 80530829 is 92803508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 32228329 = 6950^2 + 5677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80530829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80533829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40265414 + 40265415.

It is an arithmetic number, because the mean of its divisors is an integer number (40265415).

Almost surely, 2^80530829 is an apocalyptic number.

It is an amenable number.

80530829 is a deficient number, since it is larger than the sum of its proper divisors (1).

80530829 is an equidigital number, since it uses as much as digits as its factorization.

80530829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 80530829 is about 8973.8970910079. The cubic root of 80530829 is about 431.8378681853.

The spelling of 80530829 in words is "eighty million, five hundred thirty thousand, eight hundred twenty-nine".