946409 has 4 divisors (see below), whose sum is σ = 996240. Its totient is φ = 896580.

The previous prime is 946397. The next prime is 946411. The reversal of 946409 is 904649.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 904649 = 103 ⋅8783.

It is a cyclic number.

It is not a de Polignac number, because 946409 - 2¹² = 942313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (946459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24887 + ... + 24924.

It is an arithmetic number, because the mean of its divisors is an integer number (249060).

2⁹⁴⁶⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

946409 is a deficient number, since it is larger than the sum of its proper divisors (49831).

946409 is a wasteful number, since it uses less digits than its factorization.

946409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49830.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 946409 is about 972.8355462256. The cubic root of 946409 is about 98.1807368578.

It can be divided in two parts, 94640 and 9, that added together give a palindrome (94649).

The spelling of 946409 in words is "nine hundred forty-six thousand, four hundred nine".