8621867 has 2 divisors, whose sum is σ = 8621868. Its totient is φ = 8621866.

The previous prime is 8621863. The next prime is 8621869. The reversal of 8621867 is 7681268.

8621867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8621867 - 2² = 8621863 is a prime.

Together with 8621869, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8621867.

It is not a weakly prime, because it can be changed into another prime (8621861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4310933 + 4310934.

It is an arithmetic number, because the mean of its divisors is an integer number (4310934).

Almost surely, 2^8621867 is an apocalyptic number.

8621867 is a deficient number, since it is larger than the sum of its proper divisors (1).

8621867 is an equidigital number, since it uses as much as digits as its factorization.

8621867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 8621867 is about 2936.3015853280. The cubic root of 8621867 is about 205.0534621618.

The spelling of 8621867 in words is "eight million, six hundred twenty-one thousand, eight hundred sixty-seven".