3720722061 has 16 divisors (see below), whose sum is σ = 5707728000. Its totient is φ = 2111855808.

The previous prime is 3720722039. The next prime is 3720722077. The reversal of 3720722061 is 1602270273.

It is not a de Polignac number, because 3720722061 - 2⁷ = 3720721933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720721061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591426 + ... + 597683.

It is an arithmetic number, because the mean of its divisors is an integer number (356733000).

Almost surely, 2^3720722061 is an apocalyptic number.

It is an amenable number.

3720722061 is a deficient number, since it is larger than the sum of its proper divisors (1987005939).

3720722061 is a wasteful number, since it uses less digits than its factorization.

3720722061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189268.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 3720722061 is about 60997.7217689317. The cubic root of 3720722061 is about 1549.5624239661.

The spelling of 3720722061 in words is "three billion, seven hundred twenty million, seven hundred twenty-two thousand, sixty-one".