80658091 has 2 divisors, whose sum is σ = 80658092. Its totient is φ = 80658090.

The previous prime is 80658031. The next prime is 80658101. The reversal of 80658091 is 19085608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80658091 - 2¹⁵ = 80625323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80658091.

It is not a weakly prime, because it can be changed into another prime (80658031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40329045 + 40329046.

It is an arithmetic number, because the mean of its divisors is an integer number (40329046).

Almost surely, 2^80658091 is an apocalyptic number.

80658091 is a deficient number, since it is larger than the sum of its proper divisors (1).

80658091 is an equidigital number, since it uses as much as digits as its factorization.

80658091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 80658091 is about 8980.9849682538. The cubic root of 80658091 is about 432.0652247053.

The spelling of 80658091 in words is "eighty million, six hundred fifty-eight thousand, ninety-one".