67989056 has 28 divisors (see below), whose sum is σ = 135213852. Its totient is φ = 33919488.

The previous prime is 67989037. The next prime is 67989067. The reversal of 67989056 is 65098976.

It can be written as a sum of positive squares in 2 ways, for example, as 9985600 + 58003456 = 3160^2 + 7616^2 .

It is a super-2 number, since 2×67989056² = 9245023471542272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67988995 and 67989013.

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, 38366 + ... + 40098.

Almost surely, 2^67989056 is an apocalyptic number.

It is an amenable number.

67989056 is a deficient number, since it is larger than the sum of its proper divisors (67224796).

67989056 is a wasteful number, since it uses less digits than its factorization.

67989056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2348 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 67989056 is about 8245.5476470638. The cubic root of 67989056 is about 408.1436121378.

The spelling of 67989056 in words is "sixty-seven million, nine hundred eighty-nine thousand, fifty-six".