3878423 has 2 divisors, whose sum is σ = 3878424. Its totient is φ = 3878422.

The previous prime is 3878401. The next prime is 3878447. The reversal of 3878423 is 3248783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3878423 - 2⁶ = 3878359 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 8⁵ + 7⁴ + 8⁷ + 4⁵ + 2¹⁷ + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3878323) 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, 1939211 + 1939212.

It is an arithmetic number, because the mean of its divisors is an integer number (1939212).

Almost surely, 2^3878423 is an apocalyptic number.

3878423 is a deficient number, since it is larger than the sum of its proper divisors (1).

3878423 is an equidigital number, since it uses as much as digits as its factorization.

3878423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 3878423 is about 1969.3712194505. The cubic root of 3878423 is about 157.1152682381.

The spelling of 3878423 in words is "three million, eight hundred seventy-eight thousand, four hundred twenty-three".