774989730 has 24 divisors (see below), whose sum is σ = 2014973532. Its totient is φ = 206663904.

The previous prime is 774989729. The next prime is 774989759. The reversal of 774989730 is 37989477.

774989730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 724309569 + 50680161 = 26913^2 + 7119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4305409 + ... + 4305588.

Almost surely, 2^774989730 is an apocalyptic number.

774989730 is an abundant number, since it is smaller than the sum of its proper divisors (1239983802).

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

774989730 is a wasteful number, since it uses less digits than its factorization.

774989730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611010 (or 8611007 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The square root of 774989730 is about 27838.6373588938. The cubic root of 774989730 is about 918.5412175871.

It can be divided in two parts, 7749 and 89730, that added together give a palindrome (97479).

The spelling of 774989730 in words is "seven hundred seventy-four million, nine hundred eighty-nine thousand, seven hundred thirty".