3721727 has 2 divisors, whose sum is σ = 3721728. Its totient is φ = 3721726.

The previous prime is 3721721. The next prime is 3721741. The reversal of 3721727 is 7271273.

It is a weak prime.

It is an emirp because it is prime and its reverse (7271273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3721727 - 2¹⁴ = 3705343 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3721727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3721721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860863 + 1860864.

It is an arithmetic number, because the mean of its divisors is an integer number (1860864).

Almost surely, 2^3721727 is an apocalyptic number.

3721727 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721727 is an equidigital number, since it uses as much as digits as its factorization.

3721727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4116, while the sum is 29.

The square root of 3721727 is about 1929.1778041435. The cubic root of 3721727 is about 154.9701919787.

The spelling of 3721727 in words is "three million, seven hundred twenty-one thousand, seven hundred twenty-seven".