67489856 has 42 divisors (see below), whose sum is σ = 155797758. Its totient is φ = 28922880.

The previous prime is 67489853. The next prime is 67489871. The reversal of 67489856 is 65898476.

It can be written as a sum of positive squares in only one way, i.e., 58003456 + 9486400 = 7616^2 + 3080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67489798 and 67489807.

It is not an unprimeable number, because it can be changed into a prime (67489853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7625 + ... + 13896.

Almost surely, 2^67489856 is an apocalyptic number.

It is an amenable number.

67489856 is an abundant number, since it is smaller than the sum of its proper divisors (88307902).

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

67489856 is a wasteful number, since it uses less digits than its factorization.

67489856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21547 (or 21530 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 67489856 is about 8215.2209952015. The cubic root of 67489856 is about 407.1422451324.

The spelling of 67489856 in words is "sixty-seven million, four hundred eighty-nine thousand, eight hundred fifty-six".