3879851 has 2 divisors, whose sum is σ = 3879852. Its totient is φ = 3879850.

The previous prime is 3879839. The next prime is 3879853. The reversal of 3879851 is 1589783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3879851 is a prime.

Together with 3879853, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3879799 and 3879808.

It is not a weakly prime, because it can be changed into another prime (3879853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939925 + 1939926.

It is an arithmetic number, because the mean of its divisors is an integer number (1939926).

Almost surely, 2^3879851 is an apocalyptic number.

3879851 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879851 is an equidigital number, since it uses as much as digits as its factorization.

3879851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 3879851 is about 1969.7337383515. The cubic root of 3879851 is about 157.1345486752.

The spelling of 3879851 in words is "three million, eight hundred seventy-nine thousand, eight hundred fifty-one".