67643934 has 8 divisors (see below), whose sum is σ = 135287880. Its totient is φ = 22547976.

The previous prime is 67643899. The next prime is 67643959. The reversal of 67643934 is 43934676.

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

67643934 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636989 + ... + 5637000.

It is an arithmetic number, because the mean of its divisors is an integer number (16910985).

Almost surely, 2^67643934 is an apocalyptic number.

67643934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67643934 is a wasteful number, since it uses less digits than its factorization.

67643934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273994.

The product of its digits is 326592, while the sum is 42.

The square root of 67643934 is about 8224.5932422218. The cubic root of 67643934 is about 407.4518422019.

The spelling of 67643934 in words is "sixty-seven million, six hundred forty-three thousand, nine hundred thirty-four".