3721741 has 2 divisors, whose sum is σ = 3721742. Its totient is φ = 3721740.

The previous prime is 3721727. The next prime is 3721771. The reversal of 3721741 is 1471273.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3515625 + 206116 = 1875^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 3721741 - 2⁹ = 3721229 is a prime.

It is an Ulam number.

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, 1860870 + 1860871.

It is an arithmetic number, because the mean of its divisors is an integer number (1860871).

Almost surely, 2^3721741 is an apocalyptic number.

It is an amenable number.

3721741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721741 is an equidigital number, since it uses as much as digits as its factorization.

3721741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 25.

The square root of 3721741 is about 1929.1814326289. The cubic root of 3721741 is about 154.9703862953.

The spelling of 3721741 in words is "three million, seven hundred twenty-one thousand, seven hundred forty-one".