66470683 has 4 divisors (see below), whose sum is σ = 69969160. Its totient is φ = 62972208.

The previous prime is 66470671. The next prime is 66470689. The reversal of 66470683 is 38607466.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38607466 = 2 ⋅19303733.

It is a cyclic number.

It is not a de Polignac number, because 66470683 - 2¹³ = 66462491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66470689) 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, 1749210 + ... + 1749247.

It is an arithmetic number, because the mean of its divisors is an integer number (17492290).

Almost surely, 2^66470683 is an apocalyptic number.

66470683 is a deficient number, since it is larger than the sum of its proper divisors (3498477).

66470683 is a wasteful number, since it uses less digits than its factorization.

66470683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498476.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 66470683 is about 8152.9554763901. The cubic root of 66470683 is about 405.0824056267.

The spelling of 66470683 in words is "sixty-six million, four hundred seventy thousand, six hundred eighty-three".