67994784 has 216 divisors, whose sum is σ = 230211072. Its totient is φ = 18869760.

The previous prime is 67994777. The next prime is 67994803. The reversal of 67994784 is 48749976.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67994784.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 535329 + ... + 535455.

It is an arithmetic number, because the mean of its divisors is an integer number (1065792).

Almost surely, 2^67994784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67994784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115105536).

67994784 is an abundant number, since it is smaller than the sum of its proper divisors (162216288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67994784 is a wasteful number, since it uses less digits than its factorization.

67994784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 156 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 67994784 is about 8245.8949787152. The cubic root of 67994784 is about 408.1550736930.

The spelling of 67994784 in words is "sixty-seven million, nine hundred ninety-four thousand, seven hundred eighty-four".