949889999 has 8 divisors (see below), whose sum is σ = 966026880. Its totient is φ = 933886296.

The previous prime is 949889989. The next prime is 949890001. The reversal of 949889999 is 999988949.

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 949889999 - 2²⁰ = 948841423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949889929) 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, 18857 + ... + 47490.

It is an arithmetic number, because the mean of its divisors is an integer number (120753360).

Almost surely, 2^949889999 is an apocalyptic number.

949889999 is a deficient number, since it is larger than the sum of its proper divisors (16136881).

949889999 is a wasteful number, since it uses less digits than its factorization.

949889999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66589.

The product of its digits is 136048896, while the sum is 74.

The square root of 949889999 is about 30820.2855113317. The cubic root of 949889999 is about 983.0096284951.

The spelling of 949889999 in words is "nine hundred forty-nine million, eight hundred eighty-nine thousand, nine hundred ninety-nine".