774409 has 4 divisors (see below), whose sum is σ = 776340. Its totient is φ = 772480.

The previous prime is 774377. The next prime is 774427. The reversal of 774409 is 904477.

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 129600 + 644809 = 360^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 774409 - 2⁵ = 774377 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (774439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (194085).

2⁷⁷⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

774409 is a deficient number, since it is larger than the sum of its proper divisors (1931).

774409 is a wasteful number, since it uses less digits than its factorization.

774409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 774409 is about 880.0051136215. The cubic root of 774409 is about 91.8311727348.

The spelling of 774409 in words is "seven hundred seventy-four thousand, four hundred nine".