66469429 has 16 divisors (see below), whose sum is σ = 75644800. Its totient is φ = 57900096.

The previous prime is 66469423. The next prime is 66469433. The reversal of 66469429 is 92496466.

It is a cyclic number.

It is not a de Polignac number, because 66469429 - 2⁹ = 66468917 is a prime.

It is a Duffinian number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 66469429 = 34³ + 405³ = 237³ + 376³.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66469423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108127 + ... + 108739.

It is an arithmetic number, because the mean of its divisors is an integer number (4727800).

Almost surely, 2^66469429 is an apocalyptic number.

It is an amenable number.

66469429 is a deficient number, since it is larger than the sum of its proper divisors (9175371).

66469429 is a wasteful number, since it uses less digits than its factorization.

66469429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its digits is 559872, while the sum is 46.

The square root of 66469429 is about 8152.8785714004. The cubic root of 66469429 is about 405.0798582554.

The spelling of 66469429 in words is "sixty-six million, four hundred sixty-nine thousand, four hundred twenty-nine".