3728017 has 2 divisors, whose sum is σ = 3728018. Its totient is φ = 3728016.

The previous prime is 3727991. The next prime is 3728041. The reversal of 3728017 is 7108273.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3243601 + 484416 = 1801^2 + 696^2 .

It is an emirp because it is prime and its reverse (7108273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3728017 - 2¹⁹ = 3203729 is a prime.

It is a super-2 number, since 2×3728017² = 27796221504578, which contains 22 as substring.

3728017 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3728317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864008 + 1864009.

It is an arithmetic number, because the mean of its divisors is an integer number (1864009).

Almost surely, 2^3728017 is an apocalyptic number.

It is an amenable number.

3728017 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728017 is an equidigital number, since it uses as much as digits as its factorization.

3728017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 3728017 is about 1930.8073440921. The cubic root of 3728017 is about 155.0574466217.

The spelling of 3728017 in words is "three million, seven hundred twenty-eight thousand, seventeen".