949421993 has 8 divisors (see below), whose sum is σ = 1026436488. Its totient is φ = 872976384.

The previous prime is 949421989. The next prime is 949422031. The reversal of 949421993 is 399124949.

949421993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 185286544 + 764135449 = 13612^2 + 27643^2 .

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 949421993 - 2² = 949421989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (949420993) 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, 138746 + ... + 145427.

It is an arithmetic number, because the mean of its divisors is an integer number (128304561).

Almost surely, 2^949421993 is an apocalyptic number.

It is an amenable number.

949421993 is a deficient number, since it is larger than the sum of its proper divisors (77014495).

949421993 is a wasteful number, since it uses less digits than its factorization.

949421993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284443.

The product of its digits is 629856, while the sum is 50.

The square root of 949421993 is about 30812.6920764804. The cubic root of 949421993 is about 982.8481606827.

The spelling of 949421993 in words is "nine hundred forty-nine million, four hundred twenty-one thousand, nine hundred ninety-three".