3873997 has 2 divisors, whose sum is σ = 3873998. Its totient is φ = 3873996.

The previous prime is 3873983. The next prime is 3874009. The reversal of 3873997 is 7993783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3575881 + 298116 = 1891^2 + 546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3873997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3873497) 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, 1936998 + 1936999.

It is an arithmetic number, because the mean of its divisors is an integer number (1936999).

Almost surely, 2^3873997 is an apocalyptic number.

It is an amenable number.

3873997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3873997 is an equidigital number, since it uses as much as digits as its factorization.

3873997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 46.

The square root of 3873997 is about 1968.2471897605. The cubic root of 3873997 is about 157.0554796016.

The spelling of 3873997 in words is "three million, eight hundred seventy-three thousand, nine hundred ninety-seven".