67994 has 4 divisors (see below), whose sum is σ = 101994. Its totient is φ = 33996.

The previous prime is 67993. The next prime is 68023. The reversal of 67994 is 49976.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 55225 + 12769 = 235^2 + 113^2 .

It is not an unprimeable number, because it can be changed into a prime (67993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16997 + ... + 17000.

2⁶⁷⁹⁹⁴ is an apocalyptic number.

67994 is a deficient number, since it is larger than the sum of its proper divisors (34000).

67994 is a wasteful number, since it uses less digits than its factorization.

67994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33999.

The product of its digits is 13608, while the sum is 35.

The square root of 67994 is about 260.7565914795. The cubic root of 67994 is about 40.8153504971.

It can be divided in two parts, 6 and 7994, that added together give a cube (8000 = 20³).

The spelling of 67994 in words is "sixty-seven thousand, nine hundred ninety-four".