43605349 has 2 divisors, whose sum is σ = 43605350. Its totient is φ = 43605348.

The previous prime is 43605329. The next prime is 43605383. The reversal of 43605349 is 94350634.

It is a happy number.

It is an a-pointer prime, because the next prime (43605383) can be obtained adding 43605349 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29354724 + 14250625 = 5418^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 43605349 - 2⁹ = 43604837 is a prime.

It is a super-2 number, since 2×43605349² = 3802852922823602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43605329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21802674 + 21802675.

It is an arithmetic number, because the mean of its divisors is an integer number (21802675).

Almost surely, 2^43605349 is an apocalyptic number.

It is an amenable number.

43605349 is a deficient number, since it is larger than the sum of its proper divisors (1).

43605349 is an equidigital number, since it uses as much as digits as its factorization.

43605349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 43605349 is about 6603.4346366115. The cubic root of 43605349 is about 351.9761654187.

The spelling of 43605349 in words is "forty-three million, six hundred five thousand, three hundred forty-nine".