66589047 has 28 divisors (see below), whose sum is σ = 114109200. Its totient is φ = 38047968.

The previous prime is 66589031. The next prime is 66589057. The reversal of 66589047 is 74098566.

66589047 is a `hidden beast` number, since 66 + 589 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 66589047 - 2⁴ = 66589031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66588993 and 66589011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66589007) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1422 + ... + 11627.

Almost surely, 2^66589047 is an apocalyptic number.

66589047 is a deficient number, since it is larger than the sum of its proper divisors (47520153).

66589047 is an equidigital number, since it uses as much as digits as its factorization.

66589047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074 (or 13059 counting only the distinct ones).

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

The square root of 66589047 is about 8160.2112105018. The cubic root of 66589047 is about 405.3227057613.

The spelling of 66589047 in words is "sixty-six million, five hundred eighty-nine thousand, forty-seven".