3873631 has 2 divisors, whose sum is σ = 3873632. Its totient is φ = 3873630.

The previous prime is 3873629. The next prime is 3873647. The reversal of 3873631 is 1363783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3873631 - 2¹ = 3873629 is a prime.

It is a super-2 number, since 2×3873631² = 30010034248322, which contains 22 as substring.

Together with 3873629, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3873593 and 3873602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3873691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1936815 + 1936816.

It is an arithmetic number, because the mean of its divisors is an integer number (1936816).

Almost surely, 2^3873631 is an apocalyptic number.

3873631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3873631 is an equidigital number, since it uses as much as digits as its factorization.

3873631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 3873631 is about 1968.1542114377. The cubic root of 3873631 is about 157.0505334511.

The spelling of 3873631 in words is "three million, eight hundred seventy-three thousand, six hundred thirty-one".