3801857 has 2 divisors, whose sum is σ = 3801858. Its totient is φ = 3801856.

The previous prime is 3801839. The next prime is 3801869. The reversal of 3801857 is 7581083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2062096 + 1739761 = 1436^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 3801857 - 2⁶ = 3801793 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3801827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1900928 + 1900929.

It is an arithmetic number, because the mean of its divisors is an integer number (1900929).

Almost surely, 2^3801857 is an apocalyptic number.

It is an amenable number.

3801857 is a deficient number, since it is larger than the sum of its proper divisors (1).

3801857 is an equidigital number, since it uses as much as digits as its factorization.

3801857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 3801857 is about 1949.8351212346. The cubic root of 3801857 is about 156.0744905042.

The spelling of 3801857 in words is "three million, eight hundred one thousand, eight hundred fifty-seven".