66830423 has 8 divisors (see below), whose sum is σ = 73994880. Its totient is φ = 59847480.

The previous prime is 66830377. The next prime is 66830431. The reversal of 66830423 is 32403866.

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

It is not a de Polignac number, because 66830423 - 2¹⁴ = 66814039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66830423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66830443) 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, 44603 + ... + 46076.

It is an arithmetic number, because the mean of its divisors is an integer number (9249360).

Almost surely, 2^66830423 is an apocalyptic number.

66830423 is a deficient number, since it is larger than the sum of its proper divisors (7164457).

66830423 is a wasteful number, since it uses less digits than its factorization.

66830423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90757.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66830423 is about 8174.9876452506. The cubic root of 66830423 is about 405.8118612724.

The spelling of 66830423 in words is "sixty-six million, eight hundred thirty thousand, four hundred twenty-three".