3720856201 has 2 divisors, whose sum is σ = 3720856202. Its totient is φ = 3720856200.

The previous prime is 3720856169. The next prime is 3720856253. The reversal of 3720856201 is 1026580273.

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., 3642001801 + 78854400 = 60349^2 + 8880^2 .

It is a cyclic number.

It is not a de Polignac number, because 3720856201 - 2⁵ = 3720856169 is a prime.

It is not a weakly prime, because it can be changed into another prime (3720856001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860428100 + 1860428101.

It is an arithmetic number, because the mean of its divisors is an integer number (1860428101).

Almost surely, 2^3720856201 is an apocalyptic number.

It is an amenable number.

3720856201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3720856201 is an equidigital number, since it uses as much as digits as its factorization.

3720856201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 3720856201 is about 60998.8213082843. The cubic root of 3720856201 is about 1549.5810454238.

The spelling of 3720856201 in words is "three billion, seven hundred twenty million, eight hundred fifty-six thousand, two hundred one".