8678149 has 2 divisors, whose sum is σ = 8678150. Its totient is φ = 8678148.

The previous prime is 8678147. The next prime is 8678161. The reversal of 8678149 is 9418768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8661249 + 16900 = 2943^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 8678149 - 2¹ = 8678147 is a prime.

Together with 8678147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8678141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4339074 + 4339075.

It is an arithmetic number, because the mean of its divisors is an integer number (4339075).

Almost surely, 2^8678149 is an apocalyptic number.

It is an amenable number.

8678149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8678149 is an equidigital number, since it uses as much as digits as its factorization.

8678149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 8678149 is about 2945.8698206133. The cubic root of 8678149 is about 205.4986788611.

The spelling of 8678149 in words is "eight million, six hundred seventy-eight thousand, one hundred forty-nine".