989786466 has 40 divisors (see below), whose sum is σ = 2239850844. Its totient is φ = 326656800.

The previous prime is 989786417. The next prime is 989786467. The reversal of 989786466 is 664687989.

989786466 is a `hidden beast` number, since 9 + 8 + 97 + 86 + 466 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 736308225 + 253478241 = 27135^2 + 15921^2 .

It is not an unprimeable number, because it can be changed into a prime (989786467) 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 19 ways as a sum of consecutive naturals, for example, 13885 + ... + 46608.

Almost surely, 2^989786466 is an apocalyptic number.

989786466 is an abundant number, since it is smaller than the sum of its proper divisors (1250064378).

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

989786466 is a wasteful number, since it uses less digits than its factorization.

989786466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60608 (or 60599 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 989786466 is about 31460.8719841011. The cubic root of 989786466 is about 996.5838317503.

The spelling of 989786466 in words is "nine hundred eighty-nine million, seven hundred eighty-six thousand, four hundred sixty-six".