8368891 has 2 divisors, whose sum is σ = 8368892. Its totient is φ = 8368890.

The previous prime is 8368861. The next prime is 8368901. The reversal of 8368891 is 1988638.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8368891 - 2¹¹ = 8366843 is a prime.

It is not a weakly prime, because it can be changed into another prime (8368831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184445 + 4184446.

It is an arithmetic number, because the mean of its divisors is an integer number (4184446).

Almost surely, 2^8368891 is an apocalyptic number.

8368891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8368891 is an equidigital number, since it uses as much as digits as its factorization.

8368891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 43.

The square root of 8368891 is about 2892.9035587105. The cubic root of 8368891 is about 203.0280159025.

The spelling of 8368891 in words is "eight million, three hundred sixty-eight thousand, eight hundred ninety-one".