8147899 has 2 divisors, whose sum is σ = 8147900. Its totient is φ = 8147898.

The previous prime is 8147891. The next prime is 8147917. The reversal of 8147899 is 9987418.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8147899 - 2³ = 8147891 is a prime.

It is a super-2 number, since 2×8147899² = 132776516228402, which contains 22 as substring.

8147899 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8147891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4073949 + 4073950.

It is an arithmetic number, because the mean of its divisors is an integer number (4073950).

Almost surely, 2^8147899 is an apocalyptic number.

8147899 is a deficient number, since it is larger than the sum of its proper divisors (1).

8147899 is an equidigital number, since it uses as much as digits as its factorization.

8147899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 8147899 is about 2854.4524869053. The cubic root of 8147899 is about 201.2249735478.

The spelling of 8147899 in words is "eight million, one hundred forty-seven thousand, eight hundred ninety-nine".