3225749 has 2 divisors, whose sum is σ = 3225750. Its totient is φ = 3225748.

The previous prime is 3225737. The next prime is 3225769. The reversal of 3225749 is 9475223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1768900 + 1456849 = 1330^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 3225749 - 2⁸ = 3225493 is a prime.

It is a super-2 number, since 2×3225749² = 20810913222002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3225769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612874 + 1612875.

It is an arithmetic number, because the mean of its divisors is an integer number (1612875).

Almost surely, 2^3225749 is an apocalyptic number.

It is an amenable number.

3225749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3225749 is an equidigital number, since it uses as much as digits as its factorization.

3225749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 3225749 is about 1796.0370263444. The cubic root of 3225749 is about 147.7554550529.

The spelling of 3225749 in words is "three million, two hundred twenty-five thousand, seven hundred forty-nine".