3643297 has 6 divisors (see below), whose sum is σ = 4238178. Its totient is φ = 3122784.

The previous prime is 3643291. The next prime is 3643303. The reversal of 3643297 is 7923463.

It is an interprime number because it is at equal distance from previous prime (3643291) and next prime (3643303).

It can be written as a sum of positive squares in only one way, i.e., 3389281 + 254016 = 1841^2 + 504^2 .

It is not a de Polignac number, because 3643297 - 2¹⁹ = 3119009 is a prime.

It is a super-2 number, since 2×3643297² = 26547226060418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3643291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37128 + ... + 37225.

It is an arithmetic number, because the mean of its divisors is an integer number (706363).

Almost surely, 2^3643297 is an apocalyptic number.

It is an amenable number.

3643297 is a deficient number, since it is larger than the sum of its proper divisors (594881).

3643297 is an equidigital number, since it uses as much as digits as its factorization.

3643297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74367 (or 74360 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 3643297 is about 1908.7422560419. The cubic root of 3643297 is about 153.8738636562.

The spelling of 3643297 in words is "three million, six hundred forty-three thousand, two hundred ninety-seven".