3558749 has 2 divisors, whose sum is σ = 3558750. Its totient is φ = 3558748.

The previous prime is 3558739. The next prime is 3558761. The reversal of 3558749 is 9478553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 1338649 = 1490^2 + 1157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3558749 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3¹³ + 5³ + 5⁹ + 8³ + 7 + 4⁶ + 9⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3558739) 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, 1779374 + 1779375.

It is an arithmetic number, because the mean of its divisors is an integer number (1779375).

Almost surely, 2^3558749 is an apocalyptic number.

It is an amenable number.

3558749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3558749 is an equidigital number, since it uses as much as digits as its factorization.

3558749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The square root of 3558749 is about 1886.4646829453. The cubic root of 3558749 is about 152.6742467670.

The spelling of 3558749 in words is "three million, five hundred fifty-eight thousand, seven hundred forty-nine".