67998844 has 12 divisors (see below), whose sum is σ = 125997984. Its totient is φ = 31999424.

The previous prime is 67998817. The next prime is 67998863. The reversal of 67998844 is 44889976.

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, 499924 + ... + 500059.

It is an arithmetic number, because the mean of its divisors is an integer number (10499832).

Almost surely, 2^67998844 is an apocalyptic number.

It is an amenable number.

67998844 is a deficient number, since it is larger than the sum of its proper divisors (57999140).

67998844 is a wasteful number, since it uses less digits than its factorization.

67998844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000004 (or 1000002 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 67998844 is about 8246.1411581418. The cubic root of 67998844 is about 408.1631972407.

The spelling of 67998844 in words is "sixty-seven million, nine hundred ninety-eight thousand, eight hundred forty-four".