3728297 has 2 divisors, whose sum is σ = 3728298. Its totient is φ = 3728296.

The previous prime is 3728293. The next prime is 3728303. The reversal of 3728297 is 7928273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3225616 + 502681 = 1796^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 3728297 - 2² = 3728293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3728297.

It is not a weakly prime, because it can be changed into another prime (3728293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864148 + 1864149.

It is an arithmetic number, because the mean of its divisors is an integer number (1864149).

Almost surely, 2^3728297 is an apocalyptic number.

It is an amenable number.

3728297 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728297 is an equidigital number, since it uses as much as digits as its factorization.

3728297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 3728297 is about 1930.8798512595. The cubic root of 3728297 is about 155.0613284886.

The spelling of 3728297 in words is "three million, seven hundred twenty-eight thousand, two hundred ninety-seven".