3720520037 has 4 divisors (see below), whose sum is σ = 4006713900. Its totient is φ = 3434326176.

The previous prime is 3720520033. The next prime is 3720520051. The reversal of 3720520037 is 7300250273.

3720520037 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 7300250273 = 21727 ⋅335999.

It can be written as a sum of positive squares in 2 ways, for example, as 210076036 + 3510444001 = 14494^2 + 59249^2 .

It is a cyclic number.

It is not a de Polignac number, because 3720520037 - 2² = 3720520033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3720519991 and 3720520009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720520033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143096912 + ... + 143096937.

It is an arithmetic number, because the mean of its divisors is an integer number (1001678475).

Almost surely, 2^3720520037 is an apocalyptic number.

It is an amenable number.

3720520037 is a deficient number, since it is larger than the sum of its proper divisors (286193863).

3720520037 is a wasteful number, since it uses less digits than its factorization.

3720520037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286193862.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 3720520037 is about 60996.0657501777. The cubic root of 3720520037 is about 1549.5343779345.

The spelling of 3720520037 in words is "three billion, seven hundred twenty million, five hundred twenty thousand, thirty-seven".