68217049 has 8 divisors (see below), whose sum is σ = 73478240. Its totient is φ = 63122976.

The previous prime is 68217043. The next prime is 68217091. The reversal of 68217049 is 94071286.

68217049 is nontrivially palindromic in base 6.

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 68217049 - 2⁹ = 68216537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68216999 and 68217017.

It is not an unprimeable number, because it can be changed into a prime (68217043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40932 + ... + 42565.

It is an arithmetic number, because the mean of its divisors is an integer number (9184780).

Almost surely, 2^68217049 is an apocalyptic number.

It is an amenable number.

68217049 is a deficient number, since it is larger than the sum of its proper divisors (5261191).

68217049 is a wasteful number, since it uses less digits than its factorization.

68217049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83559.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 68217049 is about 8259.3612949186. The cubic root of 68217049 is about 408.5993230538.

The spelling of 68217049 in words is "sixty-eight million, two hundred seventeen thousand, forty-nine".