67880864 has 24 divisors (see below), whose sum is σ = 141502788. Its totient is φ = 31943680.

The previous prime is 67880837. The next prime is 67880921. The reversal of 67880864 is 46808876.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64963600 + 2917264 = 8060^2 + 1708^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61847 + ... + 62934.

Almost surely, 2^67880864 is an apocalyptic number.

It is an amenable number.

67880864 is an abundant number, since it is smaller than the sum of its proper divisors (73621924).

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

67880864 is a wasteful number, since it uses less digits than its factorization.

67880864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124808 (or 124800 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 67880864 is about 8238.9844034323. The cubic root of 67880864 is about 407.9270021908.

The spelling of 67880864 in words is "sixty-seven million, eight hundred eighty thousand, eight hundred sixty-four".