764767253 has 16 divisors (see below), whose sum is σ = 823269744. Its totient is φ = 707865600.

The previous prime is 764767249. The next prime is 764767259. The reversal of 764767253 is 352767467.

764767253 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 8 ways, for example, as 908209 + 763859044 = 953^2 + 27638^2 .

It is a cyclic number.

It is not a de Polignac number, because 764767253 - 2² = 764767249 is a prime.

It is a super-2 number, since 2×764767253² = 1169737902522332018, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 764767198 and 764767207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764767259) 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, 268151 + ... + 270987.

It is an arithmetic number, because the mean of its divisors is an integer number (51454359).

Almost surely, 2^764767253 is an apocalyptic number.

It is an amenable number.

764767253 is a deficient number, since it is larger than the sum of its proper divisors (58502491).

764767253 is a wasteful number, since it uses less digits than its factorization.

764767253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112.

The product of its digits is 1481760, while the sum is 47.

The square root of 764767253 is about 27654.4255590312. The cubic root of 764767253 is about 914.4846662687.

The spelling of 764767253 in words is "seven hundred sixty-four million, seven hundred sixty-seven thousand, two hundred fifty-three".