775913 has 4 divisors (see below), whose sum is σ = 781968. Its totient is φ = 769860.

The previous prime is 775889. The next prime is 775919. The reversal of 775913 is 319577.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 775913 - 2¹⁶ = 710377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 775913.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 775913.

It is not an unprimeable number, because it can be changed into a prime (775919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2831 + ... + 3092.

It is an arithmetic number, because the mean of its divisors is an integer number (195492).

2⁷⁷⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

775913 is a deficient number, since it is larger than the sum of its proper divisors (6055).

775913 is a wasteful number, since it uses less digits than its factorization.

775913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054.

The product of its digits is 6615, while the sum is 32.

The square root of 775913 is about 880.8592396064. The cubic root of 775913 is about 91.8905835321.

The spelling of 775913 in words is "seven hundred seventy-five thousand, nine hundred thirteen".