3720361 has 2 divisors, whose sum is σ = 3720362. Its totient is φ = 3720360.

The previous prime is 3720359. The next prime is 3720373. The reversal of 3720361 is 1630273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3444736 + 275625 = 1856^2 + 525^2 .

It is an emirp because it is prime and its reverse (1630273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3720361 - 2¹ = 3720359 is a prime.

Together with 3720359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3720391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860180 + 1860181.

It is an arithmetic number, because the mean of its divisors is an integer number (1860181).

Almost surely, 2^3720361 is an apocalyptic number.

It is an amenable number.

3720361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3720361 is an equidigital number, since it uses as much as digits as its factorization.

3720361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 3720361 is about 1928.8237348187. The cubic root of 3720361 is about 154.9512298870.

It can be divided in two parts, 37 and 20361, that multiplied together give a palindrome (753357).

The spelling of 3720361 in words is "three million, seven hundred twenty thousand, three hundred sixty-one".