3879917 has 2 divisors, whose sum is σ = 3879918. Its totient is φ = 3879916.

The previous prime is 3879913. The next prime is 3879919. The reversal of 3879917 is 7199783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3587236 + 292681 = 1894^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 3879917 - 2² = 3879913 is a prime.

Together with 3879919, 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 (3879913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939958 + 1939959.

It is an arithmetic number, because the mean of its divisors is an integer number (1939959).

Almost surely, 2^3879917 is an apocalyptic number.

It is an amenable number.

3879917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879917 is an equidigital number, since it uses as much as digits as its factorization.

3879917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 44.

The square root of 3879917 is about 1969.7504918136. The cubic root of 3879917 is about 157.1354396735.

The spelling of 3879917 in words is "three million, eight hundred seventy-nine thousand, nine hundred seventeen".