66086929 has 4 divisors (see below), whose sum is σ = 66132976. Its totient is φ = 66040884.

The previous prime is 66086927. The next prime is 66086953. The reversal of 66086929 is 92968066.

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 66086929 - 2¹ = 66086927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66086927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20799 + ... + 23764.

It is an arithmetic number, because the mean of its divisors is an integer number (16533244).

Almost surely, 2^66086929 is an apocalyptic number.

It is an amenable number.

66086929 is a deficient number, since it is larger than the sum of its proper divisors (46047).

66086929 is a wasteful number, since it uses less digits than its factorization.

66086929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46046.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 66086929 is about 8129.3867542392. The cubic root of 66086929 is about 404.3013489476.

The spelling of 66086929 in words is "sixty-six million, eighty-six thousand, nine hundred twenty-nine".