772865744 has 80 divisors (see below), whose sum is σ = 1790885376. Its totient is φ = 316185600.

The previous prime is 772865729. The next prime is 772865749. The reversal of 772865744 is 447568277.

772865744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 772865692 and 772865701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772865749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214034 + ... + 217614.

Almost surely, 2^772865744 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 772865744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895442688).

772865744 is an abundant number, since it is smaller than the sum of its proper divisors (1018019632).

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

772865744 is a wasteful number, since it uses less digits than its factorization.

772865744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684 (or 3678 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 50.

The square root of 772865744 is about 27800.4630177269. The cubic root of 772865744 is about 917.7013123832.

The spelling of 772865744 in words is "seven hundred seventy-two million, eight hundred sixty-five thousand, seven hundred forty-four".