68909300 has 18 divisors (see below), whose sum is σ = 149533398. Its totient is φ = 27563680.

The previous prime is 68909297. The next prime is 68909329. The reversal of 68909300 is 390986.

It can be written as a sum of positive squares in 3 ways, for example, as 1865956 + 67043344 = 1366^2 + 8188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344447 + ... + 344646.

It is an arithmetic number, because the mean of its divisors is an integer number (8307411).

Almost surely, 2^68909300 is an apocalyptic number.

It is an amenable number.

68909300 is an abundant number, since it is smaller than the sum of its proper divisors (80624098).

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

68909300 is a wasteful number, since it uses less digits than its factorization.

68909300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689107 (or 689100 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 68909300 is about 8301.1625691827. The cubic root of 68909300 is about 409.9767982111.

The spelling of 68909300 in words is "sixty-eight million, nine hundred nine thousand, three hundred".