764159085 has 12 divisors (see below), whose sum is σ = 1324542492. Its totient is φ = 407551488.

The previous prime is 764159051. The next prime is 764159093. The reversal of 764159085 is 580951467.

764159085 is a `hidden beast` number, since 76 + 415 + 90 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 497914596 + 266244489 = 22314^2 + 16317^2 .

It is not a de Polignac number, because 764159085 - 2¹⁰ = 764158061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 16981313 = 764159085 / (7 + 6 + 4 + 1 + 5 + 9 + 0 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 764159085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8490612 + ... + 8490701.

It is an arithmetic number, because the mean of its divisors is an integer number (110378541).

Almost surely, 2^764159085 is an apocalyptic number.

It is an amenable number.

764159085 is a deficient number, since it is larger than the sum of its proper divisors (560383407).

764159085 is a wasteful number, since it uses less digits than its factorization.

764159085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16981324 (or 16981321 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 764159085 is about 27643.4275190324. The cubic root of 764159085 is about 914.2421925840.

The spelling of 764159085 in words is "seven hundred sixty-four million, one hundred fifty-nine thousand, eighty-five".