67891056 has 20 divisors (see below), whose sum is σ = 175385352. Its totient is φ = 22630336.

The previous prime is 67891051. The next prime is 67891073. The reversal of 67891056 is 65019876.

It is a junction number, because it is equal to n+sod(n) for n = 67890999 and 67891017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67891051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707151 + ... + 707246.

Almost surely, 2^67891056 is an apocalyptic number.

It is an amenable number.

67891056 is an abundant number, since it is smaller than the sum of its proper divisors (107494296).

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

67891056 is a wasteful number, since it uses less digits than its factorization.

67891056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414408 (or 1414402 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 67891056 is about 8239.6029030530. The cubic root of 67891056 is about 407.9474172911.

The spelling of 67891056 in words is "sixty-seven million, eight hundred ninety-one thousand, fifty-six".