3551839 has 2 divisors, whose sum is σ = 3551840. Its totient is φ = 3551838.

The previous prime is 3551813. The next prime is 3551851. The reversal of 3551839 is 9381553.

It is a strong prime.

It is an emirp because it is prime and its reverse (9381553) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3551839 is a prime.

It is an Ulam number.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3551239) 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, 1775919 + 1775920.

It is an arithmetic number, because the mean of its divisors is an integer number (1775920).

Almost surely, 2^3551839 is an apocalyptic number.

3551839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551839 is an equidigital number, since it uses as much as digits as its factorization.

3551839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 3551839 is about 1884.6323248846. The cubic root of 3551839 is about 152.5753672077.

The spelling of 3551839 in words is "three million, five hundred fifty-one thousand, eight hundred thirty-nine".