67641334 has 16 divisors (see below), whose sum is σ = 108440208. Its totient is φ = 31532032.

The previous prime is 67641331. The next prime is 67641337. The reversal of 67641334 is 43314676.

It is an interprime number because it is at equal distance from previous prime (67641331) and next prime (67641337).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 67641334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67641331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5659 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (6777513).

Almost surely, 2^67641334 is an apocalyptic number.

67641334 is a deficient number, since it is larger than the sum of its proper divisors (40798874).

67641334 is a wasteful number, since it uses less digits than its factorization.

67641334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18719.

The product of its digits is 36288, while the sum is 34.

The square root of 67641334 is about 8224.4351781749. The cubic root of 67641334 is about 407.4466217862.

The spelling of 67641334 in words is "sixty-seven million, six hundred forty-one thousand, three hundred thirty-four".