774912 has 36 divisors (see below), whose sum is σ = 2064440. Its totient is φ = 258048.

The previous prime is 774901. The next prime is 774919. The reversal of 774912 is 219477.

It is a self number, because there is not a number n which added to its sum of digits gives 774912.

It is not an unprimeable number, because it can be changed into a prime (774919) by changing a digit.

774912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264 + ... + 1272.

2⁷⁷⁴⁹¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032220).

774912 is an abundant number, since it is smaller than the sum of its proper divisors (1289528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

774912 is a wasteful number, since it uses less digits than its factorization.

774912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1014 counting only the distinct ones).

The product of its digits is 3528, while the sum is 30.

The square root of 774912 is about 880.2908610227. The cubic root of 774912 is about 91.8510507246.

The spelling of 774912 in words is "seven hundred seventy-four thousand, nine hundred twelve".