3827869 has 2 divisors, whose sum is σ = 3827870. Its totient is φ = 3827868.

The previous prime is 3827843. The next prime is 3827881. The reversal of 3827869 is 9687283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 1532644 = 1515^2 + 1238^2 .

It is a cyclic number.

It is not a de Polignac number, because 3827869 - 2⁷ = 3827741 is a prime.

It is a super-2 number, since 2×3827869² = 29305162162322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3827809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913934 + 1913935.

It is an arithmetic number, because the mean of its divisors is an integer number (1913935).

Almost surely, 2^3827869 is an apocalyptic number.

It is an amenable number.

3827869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3827869 is an equidigital number, since it uses as much as digits as its factorization.

3827869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 3827869 is about 1956.4940582583. The cubic root of 3827869 is about 156.4296314890.

The spelling of 3827869 in words is "three million, eight hundred twenty-seven thousand, eight hundred sixty-nine".