949999999 has 8 divisors (see below), whose sum is σ = 1023321152. Its totient is φ = 876713760.

The previous prime is 949999993. The next prime is 950000017. The reversal of 949999999 is 999999949.

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

It is not a de Polignac number, because 949999999 - 2⁷ = 949999871 is a prime.

It is a Duffinian number.

949999999 is a modest number, since divided by 99999 gives 9499 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949999993) 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, 85657 + ... + 96109.

It is an arithmetic number, because the mean of its divisors is an integer number (127915144).

Almost surely, 2^949999999 is an apocalyptic number.

949999999 is a deficient number, since it is larger than the sum of its proper divisors (73321153).

949999999 is a wasteful number, since it uses less digits than its factorization.

949999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17457.

The product of its digits is 172186884, while the sum is 76.

The square root of 949999999 is about 30822.0699986227. The cubic root of 949999999 is about 983.0475721466.

The spelling of 949999999 in words is "nine hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".