3428861 has 2 divisors, whose sum is σ = 3428862. Its totient is φ = 3428860.

The previous prime is 3428851. The next prime is 3428869. The reversal of 3428861 is 1688243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1976836 + 1452025 = 1406^2 + 1205^2 .

It is an emirp because it is prime and its reverse (1688243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3428861 - 2¹⁴ = 3412477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3428869) 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 as a sum of consecutive naturals, namely, 1714430 + 1714431.

It is an arithmetic number, because the mean of its divisors is an integer number (1714431).

Almost surely, 2^3428861 is an apocalyptic number.

It is an amenable number.

3428861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3428861 is an equidigital number, since it uses as much as digits as its factorization.

3428861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 3428861 is about 1851.7183911167. The cubic root of 3428861 is about 150.7937332493.

The spelling of 3428861 in words is "three million, four hundred twenty-eight thousand, eight hundred sixty-one".