66282439 has 6 divisors (see below), whose sum is σ = 70411064. Its totient is φ = 62383200.

The previous prime is 66282421. The next prime is 66282451. The reversal of 66282439 is 93428266.

It is not a de Polignac number, because 66282439 - 2¹⁵ = 66249671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66282409) 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 5 ways as a sum of consecutive naturals, for example, 114387 + ... + 114964.

Almost surely, 2^66282439 is an apocalyptic number.

66282439 is a deficient number, since it is larger than the sum of its proper divisors (4128625).

66282439 is a wasteful number, since it uses less digits than its factorization.

66282439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229385 (or 229368 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 66282439 is about 8141.4027661086. The cubic root of 66282439 is about 404.6996482661.

The spelling of 66282439 in words is "sixty-six million, two hundred eighty-two thousand, four hundred thirty-nine".