775249 has 8 divisors (see below), whose sum is σ = 803520. Its totient is φ = 747600.

The previous prime is 775241. The next prime is 775259. The reversal of 775249 is 942577.

775249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 775249 - 2³ = 775241 is a prime.

It is a super-2 number, since 2×775249² = 1202022024002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (775241) 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, 4242 + ... + 4420.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2⁷⁷⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

775249 is a deficient number, since it is larger than the sum of its proper divisors (28271).

775249 is a wasteful number, since it uses less digits than its factorization.

775249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 17640, while the sum is 34.

The square root of 775249 is about 880.4822542221. The cubic root of 775249 is about 91.8643637709.

It can be divided in two parts, 775 and 249, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 775249 in words is "seven hundred seventy-five thousand, two hundred forty-nine".