789666885 has 48 divisors (see below), whose sum is σ = 1646636160. Its totient is φ = 341988480.

The previous prime is 789666869. The next prime is 789666887. The reversal of 789666885 is 588666987.

It is not a de Polignac number, because 789666885 - 2⁴ = 789666869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789666887) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59986 + ... + 71955.

It is an arithmetic number, because the mean of its divisors is an integer number (34304920).

Almost surely, 2^789666885 is an apocalyptic number.

It is an amenable number.

789666885 is an abundant number, since it is smaller than the sum of its proper divisors (856969275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

789666885 is a wasteful number, since it uses less digits than its factorization.

789666885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131978 (or 131975 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The square root of 789666885 is about 28101.0121703828. The cubic root of 789666885 is about 924.3035946500.

The spelling of 789666885 in words is "seven hundred eighty-nine million, six hundred sixty-six thousand, eight hundred eighty-five".