66089029 has 4 divisors (see below), whose sum is σ = 66122784. Its totient is φ = 66055276.

The previous prime is 66088991. The next prime is 66089033. The reversal of 66089029 is 92098066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66089029 - 2⁷ = 66088901 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66088982 and 66089000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66089059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13747 + ... + 17920.

It is an arithmetic number, because the mean of its divisors is an integer number (16530696).

Almost surely, 2^66089029 is an apocalyptic number.

It is an amenable number.

66089029 is a deficient number, since it is larger than the sum of its proper divisors (33755).

66089029 is a wasteful number, since it uses less digits than its factorization.

66089029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33754.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 66089029 is about 8129.5159142473. The cubic root of 66089029 is about 404.3056313064.

The spelling of 66089029 in words is "sixty-six million, eighty-nine thousand, twenty-nine".