3550009 has 2 divisors, whose sum is σ = 3550010. Its totient is φ = 3550008.

The previous prime is 3550007. The next prime is 3550069. The reversal of 3550009 is 9000553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2822400 + 727609 = 1680^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 3550009 - 2¹ = 3550007 is a prime.

Together with 3550007, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3550007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775004 + 1775005.

It is an arithmetic number, because the mean of its divisors is an integer number (1775005).

Almost surely, 2^3550009 is an apocalyptic number.

It is an amenable number.

3550009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3550009 is an equidigital number, since it uses as much as digits as its factorization.

3550009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 3550009 is about 1884.1467564922. The cubic root of 3550009 is about 152.5491591046.

The spelling of 3550009 in words is "three million, five hundred fifty thousand, nine".