66469393 has 8 divisors (see below), whose sum is σ = 67046400. Its totient is φ = 65895168.

The previous prime is 66469373. The next prime is 66469409. The reversal of 66469393 is 39396466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66469393 - 2⁹ = 66468881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66469373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92088 + ... + 92806.

It is an arithmetic number, because the mean of its divisors is an integer number (8380800).

Almost surely, 2^66469393 is an apocalyptic number.

It is an amenable number.

66469393 is a deficient number, since it is larger than the sum of its proper divisors (577007).

66469393 is a wasteful number, since it uses less digits than its factorization.

66469393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391.

The product of its digits is 629856, while the sum is 46.

The square root of 66469393 is about 8152.8763635910. The cubic root of 66469393 is about 405.0797851246.

The spelling of 66469393 in words is "sixty-six million, four hundred sixty-nine thousand, three hundred ninety-three".