67216814 has 8 divisors (see below), whose sum is σ = 115228848. Its totient is φ = 28807200.

The previous prime is 67216811. The next prime is 67216817. The reversal of 67216814 is 41861276.

It is an interprime number because it is at equal distance from previous prime (67216811) and next prime (67216817).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67216811) 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, 2400587 + ... + 2400614.

It is an arithmetic number, because the mean of its divisors is an integer number (14403606).

Almost surely, 2^67216814 is an apocalyptic number.

67216814 is a deficient number, since it is larger than the sum of its proper divisors (48012034).

67216814 is a wasteful number, since it uses less digits than its factorization.

67216814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801210.

The product of its digits is 16128, while the sum is 35.

The square root of 67216814 is about 8198.5860976146. The cubic root of 67216814 is about 406.5924480101.

The spelling of 67216814 in words is "sixty-seven million, two hundred sixteen thousand, eight hundred fourteen".