3556489 has 2 divisors, whose sum is σ = 3556490. Its totient is φ = 3556488.

The previous prime is 3556457. The next prime is 3556493. The reversal of 3556489 is 9846553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2948089 + 608400 = 1717^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 3556489 - 2⁵ = 3556457 is a prime.

It is a super-2 number, since 2×3556489² = 25297228014242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3556499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1778244 + 1778245.

It is an arithmetic number, because the mean of its divisors is an integer number (1778245).

Almost surely, 2^3556489 is an apocalyptic number.

It is an amenable number.

3556489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3556489 is an equidigital number, since it uses as much as digits as its factorization.

3556489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 3556489 is about 1885.8655837572. The cubic root of 3556489 is about 152.6419210945.

Subtracting 3556489 from its reverse (9846553), we obtain a square (6290064 = 2508²).

It can be divided in two parts, 35564 and 89, that added together give a palindrome (35653).

The spelling of 3556489 in words is "three million, five hundred fifty-six thousand, four hundred eighty-nine".