68214971 has 4 divisors (see below), whose sum is σ = 74416344. Its totient is φ = 62013600.

The previous prime is 68214953. The next prime is 68214977. The reversal of 68214971 is 17941286.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68214971 - 2¹⁰ = 68213947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68214977) 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 3 ways as a sum of consecutive naturals, for example, 3100670 + ... + 3100691.

It is an arithmetic number, because the mean of its divisors is an integer number (18604086).

Almost surely, 2^68214971 is an apocalyptic number.

68214971 is a deficient number, since it is larger than the sum of its proper divisors (6201373).

68214971 is a wasteful number, since it uses less digits than its factorization.

68214971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201372.

The product of its digits is 24192, while the sum is 38.

The square root of 68214971 is about 8259.2354973085. The cubic root of 68214971 is about 408.5951741495.

The spelling of 68214971 in words is "sixty-eight million, two hundred fourteen thousand, nine hundred seventy-one".