789450660 has 36 divisors (see below), whose sum is σ = 2394667548. Its totient is φ = 210520128.

The previous prime is 789450617. The next prime is 789450667. The reversal of 789450660 is 66054987.

789450660 is a `hidden beast` number, since 7 + 89 + 4 + 506 + 60 = 666.

789450660 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 2 ways, for example, as 263023524 + 526427136 = 16218^2 + 22944^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (789450667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2192739 + ... + 2193098.

It is an arithmetic number, because the mean of its divisors is an integer number (66518543).

Almost surely, 2^789450660 is an apocalyptic number.

It is an amenable number.

789450660 is an abundant number, since it is smaller than the sum of its proper divisors (1605216888).

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

789450660 is a wasteful number, since it uses less digits than its factorization.

789450660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385852 (or 4385847 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 789450660 is about 28097.1646256344. The cubic root of 789450660 is about 924.2192232976.

The spelling of 789450660 in words is "seven hundred eighty-nine million, four hundred fifty thousand, six hundred sixty".