765725361 has 16 divisors (see below), whose sum is σ = 1066214016. Its totient is φ = 487895936.

The previous prime is 765725357. The next prime is 765725371. The reversal of 765725361 is 163527567.

It is a cyclic number.

It is not a de Polignac number, because 765725361 - 2² = 765725357 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (765725351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99301 + ... + 106733.

It is an arithmetic number, because the mean of its divisors is an integer number (66638376).

Almost surely, 2^765725361 is an apocalyptic number.

It is an amenable number.

765725361 is a deficient number, since it is larger than the sum of its proper divisors (300488655).

765725361 is a wasteful number, since it uses less digits than its factorization.

765725361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8952.

The product of its digits is 264600, while the sum is 42.

The square root of 765725361 is about 27671.7430061787. The cubic root of 765725361 is about 914.8663987204.

The spelling of 765725361 in words is "seven hundred sixty-five million, seven hundred twenty-five thousand, three hundred sixty-one".