67949894 has 4 divisors (see below), whose sum is σ = 101924844. Its totient is φ = 33974946.

The previous prime is 67949863. The next prime is 67949899. The reversal of 67949894 is 49894976.

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

It is a super-2 number, since 2×67949894² = 9234376189222472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67949899) 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 as a sum of consecutive naturals, namely, 16987472 + ... + 16987475.

It is an arithmetic number, because the mean of its divisors is an integer number (25481211).

Almost surely, 2^67949894 is an apocalyptic number.

67949894 is a deficient number, since it is larger than the sum of its proper divisors (33974950).

67949894 is a wasteful number, since it uses less digits than its factorization.

67949894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33974949.

The product of its digits is 3919104, while the sum is 56.

The square root of 67949894 is about 8243.1725688596. The cubic root of 67949894 is about 408.0652329056.

The spelling of 67949894 in words is "sixty-seven million, nine hundred forty-nine thousand, eight hundred ninety-four".