3249809 has 2 divisors, whose sum is σ = 3249810. Its totient is φ = 3249808.

The previous prime is 3249793. The next prime is 3249833. The reversal of 3249809 is 9089423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 494209 = 1660^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 3249809 - 2⁴ = 3249793 is a prime.

It is a super-2 number, since 2×3249809² = 21122517072962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3249859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1624904 + 1624905.

It is an arithmetic number, because the mean of its divisors is an integer number (1624905).

Almost surely, 2^3249809 is an apocalyptic number.

It is an amenable number.

3249809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3249809 is an equidigital number, since it uses as much as digits as its factorization.

3249809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3249809 is about 1802.7226630849. The cubic root of 3249809 is about 148.1219016366.

The spelling of 3249809 in words is "three million, two hundred forty-nine thousand, eight hundred nine".