80980829 has 2 divisors, whose sum is σ = 80980830. Its totient is φ = 80980828.

The previous prime is 80980819. The next prime is 80980841. The reversal of 80980829 is 92808908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55204900 + 25775929 = 7430^2 + 5077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80980829 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80980829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80980819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40490414 + 40490415.

It is an arithmetic number, because the mean of its divisors is an integer number (40490415).

Almost surely, 2^80980829 is an apocalyptic number.

It is an amenable number.

80980829 is a deficient number, since it is larger than the sum of its proper divisors (1).

80980829 is an equidigital number, since it uses as much as digits as its factorization.

80980829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 80980829 is about 8998.9348814179. The cubic root of 80980829 is about 432.6407333785.

The spelling of 80980829 in words is "eighty million, nine hundred eighty thousand, eight hundred twenty-nine".