80668187 has 2 divisors, whose sum is σ = 80668188. Its totient is φ = 80668186.

The previous prime is 80668183. The next prime is 80668193. The reversal of 80668187 is 78186608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80668187 - 2² = 80668183 is a prime.

It is not a weakly prime, because it can be changed into another prime (80668183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40334093 + 40334094.

It is an arithmetic number, because the mean of its divisors is an integer number (40334094).

Almost surely, 2^80668187 is an apocalyptic number.

80668187 is a deficient number, since it is larger than the sum of its proper divisors (1).

80668187 is an equidigital number, since it uses as much as digits as its factorization.

80668187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 80668187 is about 8981.5470270995. The cubic root of 80668187 is about 432.0832512023.

The spelling of 80668187 in words is "eighty million, six hundred sixty-eight thousand, one hundred eighty-seven".