768743936 has 40 divisors (see below), whose sum is σ = 1538784324. Its totient is φ = 383672320.

The previous prime is 768743917. The next prime is 768743951. The reversal of 768743936 is 639347867.

It can be written as a sum of positive squares in 2 ways, for example, as 579846400 + 188897536 = 24080^2 + 13744^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388646 + ... + 390618.

Almost surely, 2^768743936 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 768743936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769392162).

768743936 is an abundant number, since it is smaller than the sum of its proper divisors (770040388).

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

768743936 is an equidigital number, since it uses as much as digits as its factorization.

768743936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2736 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 53.

The square root of 768743936 is about 27726.2319113146. The cubic root of 768743936 is about 916.0669910261.

The spelling of 768743936 in words is "seven hundred sixty-eight million, seven hundred forty-three thousand, nine hundred thirty-six".