3660281 has 2 divisors, whose sum is σ = 3660282. Its totient is φ = 3660280.

The previous prime is 3660269. The next prime is 3660317. The reversal of 3660281 is 1820663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2920681 + 739600 = 1709^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 3660281 - 2¹⁴ = 3643897 is a prime.

It is a super-2 number, since 2×3660281² = 26795313997922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3660281.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3660211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830140 + 1830141.

It is an arithmetic number, because the mean of its divisors is an integer number (1830141).

Almost surely, 2^3660281 is an apocalyptic number.

It is an amenable number.

3660281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3660281 is an equidigital number, since it uses as much as digits as its factorization.

3660281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3660281 is about 1913.1860860878. The cubic root of 3660281 is about 154.1125982623.

The spelling of 3660281 in words is "three million, six hundred sixty thousand, two hundred eighty-one".