3856973 has 2 divisors, whose sum is σ = 3856974. Its totient is φ = 3856972.

The previous prime is 3856967. The next prime is 3856987. The reversal of 3856973 is 3796583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3319684 + 537289 = 1822^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856973 - 2⁸ = 3856717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3856973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3856903) 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, 1928486 + 1928487.

It is an arithmetic number, because the mean of its divisors is an integer number (1928487).

Almost surely, 2^3856973 is an apocalyptic number.

It is an amenable number.

3856973 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856973 is an equidigital number, since it uses as much as digits as its factorization.

3856973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 3856973 is about 1963.9177681359. The cubic root of 3856973 is about 156.8250854675.

The spelling of 3856973 in words is "three million, eight hundred fifty-six thousand, nine hundred seventy-three".