68028864 has 28 divisors (see below), whose sum is σ = 179993544. Its totient is φ = 22676224.

The previous prime is 68028827. The next prime is 68028869. The reversal of 68028864 is 46882086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68028869) 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, 176967 + ... + 177350.

Almost surely, 2^68028864 is an apocalyptic number.

68028864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68028864 is an abundant number, since it is smaller than the sum of its proper divisors (111964680).

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

68028864 is a wasteful number, since it uses less digits than its factorization.

68028864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354332 (or 354322 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 68028864 is about 8247.9612026246. The cubic root of 68028864 is about 408.2232534405.

The spelling of 68028864 in words is "sixty-eight million, twenty-eight thousand, eight hundred sixty-four".