68108900 has 18 divisors (see below), whose sum is σ = 147796530. Its totient is φ = 27243520.

The previous prime is 68108899. The next prime is 68108903. The reversal of 68108900 is 980186.

It can be written as a sum of positive squares in 3 ways, for example, as 1098304 + 67010596 = 1048^2 + 8186^2 .

It is not an unprimeable number, because it can be changed into a prime (68108903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340445 + ... + 340644.

Almost surely, 2^68108900 is an apocalyptic number.

It is an amenable number.

68108900 is an abundant number, since it is smaller than the sum of its proper divisors (79687630).

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

68108900 is a wasteful number, since it uses less digits than its factorization.

68108900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681103 (or 681096 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 68108900 is about 8252.8116421011. The cubic root of 68108900 is about 408.3832823344.

The spelling of 68108900 in words is "sixty-eight million, one hundred eight thousand, nine hundred".