66982849 has 8 divisors (see below), whose sum is σ = 68906880. Its totient is φ = 65079696.

The previous prime is 66982843. The next prime is 66982859. The reversal of 66982849 is 94828966.

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 66982849 - 2³ = 66982841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66982796 and 66982805.

It is not an unprimeable number, because it can be changed into a prime (66982841) 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, 1407 + ... + 11659.

It is an arithmetic number, because the mean of its divisors is an integer number (8613360).

Almost surely, 2^66982849 is an apocalyptic number.

It is an amenable number.

66982849 is a deficient number, since it is larger than the sum of its proper divisors (1924031).

66982849 is a wasteful number, since it uses less digits than its factorization.

66982849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439.

The product of its digits is 1492992, while the sum is 52.

The square root of 66982849 is about 8184.3050407472. The cubic root of 66982849 is about 406.1201505638.

The spelling of 66982849 in words is "sixty-six million, nine hundred eighty-two thousand, eight hundred forty-nine".