3878899 has 2 divisors, whose sum is σ = 3878900. Its totient is φ = 3878898.

The previous prime is 3878893. The next prime is 3878921. The reversal of 3878899 is 9988783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3878899 - 2⁵ = 3878867 is a prime.

3878899 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3878893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939449 + 1939450.

It is an arithmetic number, because the mean of its divisors is an integer number (1939450).

Almost surely, 2^3878899 is an apocalyptic number.

3878899 is a deficient number, since it is larger than the sum of its proper divisors (1).

3878899 is an equidigital number, since it uses as much as digits as its factorization.

3878899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 3878899 is about 1969.4920664984. The cubic root of 3878899 is about 157.1216955762.

The spelling of 3878899 in words is "three million, eight hundred seventy-eight thousand, eight hundred ninety-nine".