3720413 has 2 divisors, whose sum is σ = 3720414. Its totient is φ = 3720412.

The previous prime is 3720407. The next prime is 3720421. The reversal of 3720413 is 3140273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3545689 + 174724 = 1883^2 + 418^2 .

It is an emirp because it is prime and its reverse (3140273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3720413 - 2⁴ = 3720397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3720113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860206 + 1860207.

It is an arithmetic number, because the mean of its divisors is an integer number (1860207).

Almost surely, 2^3720413 is an apocalyptic number.

It is an amenable number.

3720413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3720413 is an equidigital number, since it uses as much as digits as its factorization.

3720413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 3720413 is about 1928.8372144896. The cubic root of 3720413 is about 154.9519518085.

Adding to 3720413 its reverse (3140273), we get a palindrome (6860686).

The spelling of 3720413 in words is "three million, seven hundred twenty thousand, four hundred thirteen".