3251609 has 2 divisors, whose sum is σ = 3251610. Its totient is φ = 3251608.

The previous prime is 3251593. The next prime is 3251653. The reversal of 3251609 is 9061523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 29584 = 1795^2 + 172^2 .

It is an emirp because it is prime and its reverse (9061523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3251609 - 2⁴ = 3251593 is a prime.

It is a super-2 number, since 2×3251609² = 21145922177762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3251659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625804 + 1625805.

It is an arithmetic number, because the mean of its divisors is an integer number (1625805).

Almost surely, 2^3251609 is an apocalyptic number.

It is an amenable number.

3251609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3251609 is an equidigital number, since it uses as much as digits as its factorization.

3251609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 3251609 is about 1803.2218388207. The cubic root of 3251609 is about 148.1492437782.

The spelling of 3251609 in words is "three million, two hundred fifty-one thousand, six hundred nine".