3897241 has 2 divisors, whose sum is σ = 3897242. Its totient is φ = 3897240.

The previous prime is 3897217. The next prime is 3897259. The reversal of 3897241 is 1427983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3080025 + 817216 = 1755^2 + 904^2 .

It is a cyclic number.

It is not a de Polignac number, because 3897241 - 2⁵ = 3897209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3897197 and 3897206.

It is not a weakly prime, because it can be changed into another prime (3897841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1948620 + 1948621.

It is an arithmetic number, because the mean of its divisors is an integer number (1948621).

Almost surely, 2^3897241 is an apocalyptic number.

It is an amenable number.

3897241 is a deficient number, since it is larger than the sum of its proper divisors (1).

3897241 is an equidigital number, since it uses as much as digits as its factorization.

3897241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 3897241 is about 1974.1431052485. The cubic root of 3897241 is about 157.3689646669.

It can be divided in two parts, 38 and 97241, that added together give a palindrome (97279).

The spelling of 3897241 in words is "three million, eight hundred ninety-seven thousand, two hundred forty-one".