68823400 has 24 divisors (see below), whose sum is σ = 160014870. Its totient is φ = 27529280.

The previous prime is 68823397. The next prime is 68823401. The reversal of 68823400 is 432886.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 60746436 + 8076964 = 7794^2 + 2842^2 .

It is not an unprimeable number, because it can be changed into a prime (68823401) 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, 171859 + ... + 172258.

Almost surely, 2^68823400 is an apocalyptic number.

It is an amenable number.

68823400 is an abundant number, since it is smaller than the sum of its proper divisors (91191470).

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

68823400 is a wasteful number, since it uses less digits than its factorization.

68823400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344133 (or 344124 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 68823400 is about 8295.9869816677. The cubic root of 68823400 is about 409.8063729780.

The spelling of 68823400 in words is "sixty-eight million, eight hundred twenty-three thousand, four hundred".