8681899 has 2 divisors, whose sum is σ = 8681900. Its totient is φ = 8681898.

The previous prime is 8681857. The next prime is 8681923. The reversal of 8681899 is 9981868.

It is a happy number.

8681899 is digitally balanced in base 2 and base 3, because in such bases 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 8681899 - 2¹⁷ = 8550827 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8681999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4340949 + 4340950.

It is an arithmetic number, because the mean of its divisors is an integer number (4340950).

Almost surely, 2^8681899 is an apocalyptic number.

8681899 is a deficient number, since it is larger than the sum of its proper divisors (1).

8681899 is an equidigital number, since it uses as much as digits as its factorization.

8681899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 49.

The square root of 8681899 is about 2946.5062362059. The cubic root of 8681899 is about 205.5282746145.

The spelling of 8681899 in words is "eight million, six hundred eighty-one thousand, eight hundred ninety-nine".