3986923 has 2 divisors, whose sum is σ = 3986924. Its totient is φ = 3986922.

The previous prime is 3986921. The next prime is 3986929. The reversal of 3986923 is 3296893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3986923 - 2¹ = 3986921 is a prime.

Together with 3986921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3986921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993461 + 1993462.

It is an arithmetic number, because the mean of its divisors is an integer number (1993462).

Almost surely, 2^3986923 is an apocalyptic number.

3986923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986923 is an equidigital number, since it uses as much as digits as its factorization.

3986923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 3986923 is about 1996.7280736244. The cubic root of 3986923 is about 158.5669293114.

The spelling of 3986923 in words is "three million, nine hundred eighty-six thousand, nine hundred twenty-three".