67287680 has 32 divisors (see below), whose sum is σ = 160861140. Its totient is φ = 26914816.

The previous prime is 67287679. The next prime is 67287739. The reversal of 67287680 is 8678276.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59845696 + 7441984 = 7736^2 + 2728^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 51929 + ... + 53208.

Almost surely, 2^67287680 is an apocalyptic number.

It is an amenable number.

67287680 is an abundant number, since it is smaller than the sum of its proper divisors (93573460).

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

67287680 is a wasteful number, since it uses less digits than its factorization.

67287680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105156 (or 105144 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 67287680 is about 8202.9068018599. The cubic root of 67287680 is about 406.7352865782.

The spelling of 67287680 in words is "sixty-seven million, two hundred eighty-seven thousand, six hundred eighty".