80658797 has 2 divisors, whose sum is σ = 80658798. Its totient is φ = 80658796.

The previous prime is 80658793. The next prime is 80658803. The reversal of 80658797 is 79785608.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53085796 + 27573001 = 7286^2 + 5251^2 .

It is a cyclic number.

It is not a de Polignac number, because 80658797 - 2² = 80658793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80658793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40329398 + 40329399.

It is an arithmetic number, because the mean of its divisors is an integer number (40329399).

Almost surely, 2^80658797 is an apocalyptic number.

It is an amenable number.

80658797 is a deficient number, since it is larger than the sum of its proper divisors (1).

80658797 is an equidigital number, since it uses as much as digits as its factorization.

80658797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 80658797 is about 8981.0242734334. The cubic root of 80658797 is about 432.0664853234.

The spelling of 80658797 in words is "eighty million, six hundred fifty-eight thousand, seven hundred ninety-seven".