3609481 has 2 divisors, whose sum is σ = 3609482. Its totient is φ = 3609480.

The previous prime is 3609479. The next prime is 3609493. The reversal of 3609481 is 1849063.

3609481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3549456 + 60025 = 1884^2 + 245^2 .

It is an emirp because it is prime and its reverse (1849063) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3609481 - 2¹ = 3609479 is a prime.

It is a super-2 number, since 2×3609481² = 26056706178722, which contains 22 as substring.

Together with 3609479, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₂₅₇₃₇₇ and since 3609481 and 257377 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3609451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804740 + 1804741.

It is an arithmetic number, because the mean of its divisors is an integer number (1804741).

Almost surely, 2^3609481 is an apocalyptic number.

It is an amenable number.

3609481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3609481 is an equidigital number, since it uses as much as digits as its factorization.

3609481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3609481 is about 1899.8634161434. The cubic root of 3609481 is about 153.3963126080.

The spelling of 3609481 in words is "three million, six hundred nine thousand, four hundred eighty-one".