3720813461 has 2 divisors, whose sum is σ = 3720813462. Its totient is φ = 3720813460.

The previous prime is 3720813373. The next prime is 3720813517. The reversal of 3720813461 is 1643180273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1947898225 + 1772915236 = 44135^2 + 42106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3720813461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3720803461) 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 as a sum of consecutive naturals, namely, 1860406730 + 1860406731.

It is an arithmetic number, because the mean of its divisors is an integer number (1860406731).

Almost surely, 2^3720813461 is an apocalyptic number.

It is an amenable number.

3720813461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3720813461 is an equidigital number, since it uses as much as digits as its factorization.

3720813461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3720813461 is about 60998.4709726400. The cubic root of 3720813461 is about 1549.5751122600.

The spelling of 3720813461 in words is "three billion, seven hundred twenty million, eight hundred thirteen thousand, four hundred sixty-one".