3878207 has 2 divisors, whose sum is σ = 3878208. Its totient is φ = 3878206.

The previous prime is 3878183. The next prime is 3878209. The reversal of 3878207 is 7028783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3878207 - 2⁶ = 3878143 is a prime.

Together with 3878209, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3878209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939103 + 1939104.

It is an arithmetic number, because the mean of its divisors is an integer number (1939104).

Almost surely, 2^3878207 is an apocalyptic number.

3878207 is a deficient number, since it is larger than the sum of its proper divisors (1).

3878207 is an equidigital number, since it uses as much as digits as its factorization.

3878207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 3878207 is about 1969.3163788483. The cubic root of 3878207 is about 157.1123514574.

The spelling of 3878207 in words is "three million, eight hundred seventy-eight thousand, two hundred seven".