66484089 has 12 divisors (see below), whose sum is σ = 109751616. Its totient is φ = 37990872.

The previous prime is 66484087. The next prime is 66484123. The reversal of 66484089 is 98048466.

It is a happy number.

It is not a de Polignac number, because 66484089 - 2¹ = 66484087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66484087) 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 11 ways as a sum of consecutive naturals, for example, 527589 + ... + 527714.

It is an arithmetic number, because the mean of its divisors is an integer number (9145968).

Almost surely, 2^66484089 is an apocalyptic number.

It is an amenable number.

66484089 is a deficient number, since it is larger than the sum of its proper divisors (43267527).

66484089 is a wasteful number, since it uses less digits than its factorization.

66484089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055316 (or 1055313 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 66484089 is about 8153.7775907858. Note that the first 3 decimals coincide. The cubic root of 66484089 is about 405.1096365273.

The spelling of 66484089 in words is "sixty-six million, four hundred eighty-four thousand, eighty-nine".