943409 has 2 divisors, whose sum is σ = 943410. Its totient is φ = 943408.

The previous prime is 943403. The next prime is 943421. The reversal of 943409 is 904349.

It is a happy number.

943409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 327184 = 785^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 943409 - 2⁸ = 943153 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (943403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471704 + 471705.

It is an arithmetic number, because the mean of its divisors is an integer number (471705).

2⁹⁴³⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

943409 is a deficient number, since it is larger than the sum of its proper divisors (1).

943409 is an equidigital number, since it uses as much as digits as its factorization.

943409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 943409 is about 971.2924379403. The cubic root of 943409 is about 98.0768867674.

Subtracting from 943409 its reverse (904349), we obtain a triangular number (39060 = T₂₇₉).

It can be divided in two parts, 94340 and 9, that added together give a palindrome (94349).

The spelling of 943409 in words is "nine hundred forty-three thousand, four hundred nine".