9950509 has 8 divisors (see below), whose sum is σ = 10836000. Its totient is φ = 9101232.

The previous prime is 9950489. The next prime is 9950531. The reversal of 9950509 is 9050599.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9950509 - 2²¹ = 7853357 is a prime.

It is a Duffinian number.

9950509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9950539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8479 + ... + 9580.

It is an arithmetic number, because the mean of its divisors is an integer number (1354500).

Almost surely, 2^9950509 is an apocalyptic number.

It is an amenable number.

9950509 is a deficient number, since it is larger than the sum of its proper divisors (885491).

9950509 is a wasteful number, since it uses less digits than its factorization.

9950509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18107.

The product of its (nonzero) digits is 18225, while the sum is 37.

The square root of 9950509 is about 3154.4427400097. The cubic root of 9950509 is about 215.0874639633.

The spelling of 9950509 in words is "nine million, nine hundred fifty thousand, five hundred nine".