67983939 has 12 divisors (see below), whose sum is σ = 98380776. Its totient is φ = 45238752.

The previous prime is 67983907. The next prime is 67983941. The reversal of 67983939 is 93938976.

It is not a de Polignac number, because 67983939 - 2⁵ = 67983907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67983959) 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 in 11 ways as a sum of consecutive naturals, for example, 1642 + ... + 11775.

It is an arithmetic number, because the mean of its divisors is an integer number (8198398).

Almost surely, 2^67983939 is an apocalyptic number.

67983939 is a deficient number, since it is larger than the sum of its proper divisors (30396837).

67983939 is a wasteful number, since it uses less digits than its factorization.

67983939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13986 (or 13983 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 67983939 is about 8245.2373525569. The cubic root of 67983939 is about 408.1333726307.

The spelling of 67983939 in words is "sixty-seven million, nine hundred eighty-three thousand, nine hundred thirty-nine".