3720847513 has 4 divisors (see below), whose sum is σ = 3773253888. Its totient is φ = 3668441140.

The previous prime is 3720847469. The next prime is 3720847531. The reversal of 3720847513 is 3157480273.

It is a happy number.

3720847513 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3720847513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3720847553) 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 in 3 ways as a sum of consecutive naturals, for example, 26203081 + ... + 26203222.

It is an arithmetic number, because the mean of its divisors is an integer number (943313472).

Almost surely, 2^3720847513 is an apocalyptic number.

It is an amenable number.

3720847513 is a deficient number, since it is larger than the sum of its proper divisors (52406375).

3720847513 is an equidigital number, since it uses as much as digits as its factorization.

3720847513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52406374.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 3720847513 is about 60998.7500937519. The cubic root of 3720847513 is about 1549.5798393599.

The spelling of 3720847513 in words is "three billion, seven hundred twenty million, eight hundred forty-seven thousand, five hundred thirteen".