32643449 has 2 divisors, whose sum is σ = 32643450. Its totient is φ = 32643448.

The previous prime is 32643439. The next prime is 32643487. The reversal of 32643449 is 94434623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17682025 + 14961424 = 4205^2 + 3868^2 .

It is a cyclic number.

It is not a de Polignac number, because 32643449 - 2⁴ = 32643433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32643439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16321724 + 16321725.

It is an arithmetic number, because the mean of its divisors is an integer number (16321725).

Almost surely, 2^32643449 is an apocalyptic number.

It is an amenable number.

32643449 is a deficient number, since it is larger than the sum of its proper divisors (1).

32643449 is an equidigital number, since it uses as much as digits as its factorization.

32643449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 35.

The square root of 32643449 is about 5713.4445827364. Note that the first 3 decimals coincide. The cubic root of 32643449 is about 319.5940457683.

The spelling of 32643449 in words is "thirty-two million, six hundred forty-three thousand, four hundred forty-nine".