775801 has 8 divisors (see below), whose sum is σ = 846720. Its totient is φ = 706512.

The previous prime is 775787. The next prime is 775807. The reversal of 775801 is 108577.

It is a happy number.

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 775801 - 2¹⁷ = 644729 is a prime.

It is a super-3 number, since 3×775801³ = 1400787507333742203, which contains 333 as substring.

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 775801.

It is not an unprimeable number, because it can be changed into a prime (775807) 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 7 ways as a sum of consecutive naturals, for example, 720 + ... + 1438.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2⁷⁷⁵⁸⁰¹ is an apocalyptic number.

It is an amenable number.

775801 is a deficient number, since it is larger than the sum of its proper divisors (70919).

775801 is a wasteful number, since it uses less digits than its factorization.

775801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 775801 is about 880.7956630229. The cubic root of 775801 is about 91.8861619709.

The spelling of 775801 in words is "seven hundred seventy-five thousand, eight hundred one".