775460720 has 20 divisors (see below), whose sum is σ = 1802946360. Its totient is φ = 310184256.

The previous prime is 775460717. The next prime is 775460723. The reversal of 775460720 is 27064577.

775460720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (775460717) and next prime (775460723).

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775460723) 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, 4846550 + ... + 4846709.

It is an arithmetic number, because the mean of its divisors is an integer number (90147318).

Almost surely, 2^775460720 is an apocalyptic number.

It is an amenable number.

775460720 is an abundant number, since it is smaller than the sum of its proper divisors (1027485640).

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

775460720 is a wasteful number, since it uses less digits than its factorization.

775460720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693272 (or 9693266 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 775460720 is about 27847.0953601987. The cubic root of 775460720 is about 918.7272570920.

The spelling of 775460720 in words is "seven hundred seventy-five million, four hundred sixty thousand, seven hundred twenty".