3873647 has 2 divisors, whose sum is σ = 3873648. Its totient is φ = 3873646.

The previous prime is 3873631. The next prime is 3873659. The reversal of 3873647 is 7463783.

It is a strong prime.

It is an emirp because it is prime and its reverse (7463783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3873647 - 2⁴ = 3873631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3873647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3873677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1936823 + 1936824.

It is an arithmetic number, because the mean of its divisors is an integer number (1936824).

Almost surely, 2^3873647 is an apocalyptic number.

3873647 is a deficient number, since it is larger than the sum of its proper divisors (1).

3873647 is an equidigital number, since it uses as much as digits as its factorization.

3873647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 3873647 is about 1968.1582761557. The cubic root of 3873647 is about 157.0507496828.

It can be divided in two parts, 38736 and 47, that added together give a palindrome (38783).

The spelling of 3873647 in words is "three million, eight hundred seventy-three thousand, six hundred forty-seven".