1050065993 has 8 divisors (see below), whose sum is σ = 1065037896. Its totient is φ = 1035184000.

The previous prime is 1050065983. The next prime is 1050066023. The reversal of 1050065993 is 3995600501.

It can be written as a sum of positive squares in 4 ways, for example, as 615635344 + 434430649 = 24812^2 + 20843^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1050065993 is a prime.

It is a super-2 number, since 2×1050065993² = 2205277179310152098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1050065903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223 + ... + 45843.

It is an arithmetic number, because the mean of its divisors is an integer number (133129737).

Almost surely, 2^1050065993 is an apocalyptic number.

It is an amenable number.

1050065993 is a deficient number, since it is larger than the sum of its proper divisors (14971903).

1050065993 is a wasteful number, since it uses less digits than its factorization.

1050065993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44955.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 1050065993 is about 32404.7217701371. The cubic root of 1050065993 is about 1016.4176500338.

The spelling of 1050065993 in words is "one billion, fifty million, sixty-five thousand, nine hundred ninety-three".