3878893 has 2 divisors, whose sum is σ = 3878894. Its totient is φ = 3878892.

The previous prime is 3878879. The next prime is 3878899. The reversal of 3878893 is 3988783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2951524 + 927369 = 1718^2 + 963^2 .

It is an emirp because it is prime and its reverse (3988783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3878893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3878899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939446 + 1939447.

It is an arithmetic number, because the mean of its divisors is an integer number (1939447).

Almost surely, 2^3878893 is an apocalyptic number.

It is an amenable number.

3878893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3878893 is an equidigital number, since it uses as much as digits as its factorization.

3878893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 3878893 is about 1969.4905432624. The cubic root of 3878893 is about 157.1216145626.

The spelling of 3878893 in words is "three million, eight hundred seventy-eight thousand, eight hundred ninety-three".