775082993 has 4 divisors (see below), whose sum is σ = 796031220. Its totient is φ = 754134768.

The previous prime is 775082963. The next prime is 775083011. The reversal of 775082993 is 399280577.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 600103009 + 174979984 = 24497^2 + 13228^2 .

It is a cyclic number.

It is not a de Polignac number, because 775082993 - 2⁶ = 775082929 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 (775082923) 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 3 ways as a sum of consecutive naturals, for example, 10474058 + ... + 10474131.

It is an arithmetic number, because the mean of its divisors is an integer number (199007805).

Almost surely, 2^775082993 is an apocalyptic number.

It is an amenable number.

775082993 is a deficient number, since it is larger than the sum of its proper divisors (20948227).

775082993 is a wasteful number, since it uses less digits than its factorization.

775082993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20948226.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 775082993 is about 27840.3123725292. The cubic root of 775082993 is about 918.5780621499.

The spelling of 775082993 in words is "seven hundred seventy-five million, eighty-two thousand, nine hundred ninety-three".