80818207 has 2 divisors, whose sum is σ = 80818208. Its totient is φ = 80818206.

The previous prime is 80818193. The next prime is 80818217. The reversal of 80818207 is 70281808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80818207 - 2¹¹ = 80816159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80818217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40409103 + 40409104.

It is an arithmetic number, because the mean of its divisors is an integer number (40409104).

Almost surely, 2^80818207 is an apocalyptic number.

80818207 is a deficient number, since it is larger than the sum of its proper divisors (1).

80818207 is an equidigital number, since it uses as much as digits as its factorization.

80818207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 80818207 is about 8989.8947157350. The cubic root of 80818207 is about 432.3509361896.

The spelling of 80818207 in words is "eighty million, eight hundred eighteen thousand, two hundred seven".