67984347 has 4 divisors (see below), whose sum is σ = 90645800. Its totient is φ = 45322896.

The previous prime is 67984327. The next prime is 67984361. The reversal of 67984347 is 74348976.

It is a happy number.

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

It is not a de Polignac number, because 67984347 - 2⁷ = 67984219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67984296 and 67984305.

It is not an unprimeable number, because it can be changed into a prime (67984307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11330722 + ... + 11330727.

It is an arithmetic number, because the mean of its divisors is an integer number (22661450).

Almost surely, 2^67984347 is an apocalyptic number.

67984347 is a deficient number, since it is larger than the sum of its proper divisors (22661453).

67984347 is a wasteful number, since it uses less digits than its factorization.

67984347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22661452.

The product of its digits is 1016064, while the sum is 48.

The square root of 67984347 is about 8245.2620940756. The cubic root of 67984347 is about 408.1341890887.

The spelling of 67984347 in words is "sixty-seven million, nine hundred eighty-four thousand, three hundred forty-seven".