3918899 has 2 divisors, whose sum is σ = 3918900. Its totient is φ = 3918898.

The previous prime is 3918881. The next prime is 3918913. The reversal of 3918899 is 9988193.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3918899 - 2²⁰ = 2870323 is a prime.

It is not a weakly prime, because it can be changed into another prime (3918829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959449 + 1959450.

It is an arithmetic number, because the mean of its divisors is an integer number (1959450).

Almost surely, 2^3918899 is an apocalyptic number.

3918899 is a deficient number, since it is larger than the sum of its proper divisors (1).

3918899 is an equidigital number, since it uses as much as digits as its factorization.

3918899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 47.

The square root of 3918899 is about 1979.6209233083. The cubic root of 3918899 is about 157.6599399880.

The spelling of 3918899 in words is "three million, nine hundred eighteen thousand, eight hundred ninety-nine".