3728790517 has 2 divisors, whose sum is σ = 3728790518. Its totient is φ = 3728790516.

The previous prime is 3728790511. The next prime is 3728790581. The reversal of 3728790517 is 7150978273.

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., 3711368241 + 17422276 = 60921^2 + 4174^2 .

It is a cyclic number.

It is not a de Polignac number, because 3728790517 - 2⁷ = 3728790389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3728790511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864395258 + 1864395259.

It is an arithmetic number, because the mean of its divisors is an integer number (1864395259).

Almost surely, 2^3728790517 is an apocalyptic number.

It is an amenable number.

3728790517 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728790517 is an equidigital number, since it uses as much as digits as its factorization.

3728790517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 3728790517 is about 61063.8233080766. The cubic root of 3728790517 is about 1550.6817004171.

The spelling of 3728790517 in words is "three billion, seven hundred twenty-eight million, seven hundred ninety thousand, five hundred seventeen".