67984450 has 12 divisors (see below), whose sum is σ = 126451170. Its totient is φ = 27193760.

The previous prime is 67984393. The next prime is 67984463. The reversal of 67984450 is 5448976.

It can be written as a sum of positive squares in 3 ways, for example, as 40411449 + 27573001 = 6357^2 + 5251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67984397 and 67984406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 679795 + ... + 679894.

Almost surely, 2^67984450 is an apocalyptic number.

67984450 is a deficient number, since it is larger than the sum of its proper divisors (58466720).

67984450 is a wasteful number, since it uses less digits than its factorization.

67984450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359701 (or 1359696 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 67984450 is about 8245.2683400845. The cubic root of 67984450 is about 408.1343952038.

The spelling of 67984450 in words is "sixty-seven million, nine hundred eighty-four thousand, four hundred fifty".