769608987 has 16 divisors (see below), whose sum is σ = 1183119360. Its totient is φ = 435883392.

The previous prime is 769608971. The next prime is 769609013. The reversal of 769608987 is 789806967.

It is not a de Polignac number, because 769608987 - 2⁴ = 769608971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 769608987.

It is not an unprimeable number, because it can be changed into a prime (769608487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159787 + ... + 164532.

It is an arithmetic number, because the mean of its divisors is an integer number (73944960).

Almost surely, 2^769608987 is an apocalyptic number.

769608987 is a deficient number, since it is larger than the sum of its proper divisors (413510373).

769608987 is a wasteful number, since it uses less digits than its factorization.

769608987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324442.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The square root of 769608987 is about 27741.8273911435. The cubic root of 769608987 is about 916.4104723749.

The spelling of 769608987 in words is "seven hundred sixty-nine million, six hundred eight thousand, nine hundred eighty-seven".