769916585 has 4 divisors (see below), whose sum is σ = 923899908. Its totient is φ = 615933264.

The previous prime is 769916569. The next prime is 769916597. The reversal of 769916585 is 585619967.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585619967 = 43 ⋅13619069.

It can be written as a sum of positive squares in 2 ways, for example, as 615635344 + 154281241 = 24812^2 + 12421^2 .

It is a cyclic number.

It is not a de Polignac number, because 769916585 - 2⁴ = 769916569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 769916585.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76991654 + ... + 76991663.

It is an arithmetic number, because the mean of its divisors is an integer number (230974977).

Almost surely, 2^769916585 is an apocalyptic number.

It is an amenable number.

769916585 is a deficient number, since it is larger than the sum of its proper divisors (153983323).

769916585 is a wasteful number, since it uses less digits than its factorization.

769916585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153983322.

The product of its digits is 4082400, while the sum is 56.

The square root of 769916585 is about 27747.3707763456. The cubic root of 769916585 is about 916.5325466952.

The spelling of 769916585 in words is "seven hundred sixty-nine million, nine hundred sixteen thousand, five hundred eighty-five".