946509 has 16 divisors (see below), whose sum is σ = 1361088. Its totient is φ = 582912.

The previous prime is 946507. The next prime is 946511. The reversal of 946509 is 905649.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (946507) and next prime (946511).

It is not a de Polignac number, because 946509 - 2¹ = 946507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 946509.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 946509.

It is not an unprimeable number, because it can be changed into a prime (946507) 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 15 ways as a sum of consecutive naturals, for example, 3279 + ... + 3555.

It is an arithmetic number, because the mean of its divisors is an integer number (85068).

2⁹⁴⁶⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

946509 is a deficient number, since it is larger than the sum of its proper divisors (414579).

946509 is a wasteful number, since it uses less digits than its factorization.

946509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 946509 is about 972.8869410163. The cubic root of 946509 is about 98.1841947454.

The spelling of 946509 in words is "nine hundred forty-six thousand, five hundred nine".