68197700 has 18 divisors (see below), whose sum is σ = 147989226. Its totient is φ = 27279040.

The previous prime is 68197681. The next prime is 68197721. The reversal of 68197700 is 779186.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3136 + 68194564 = 56^2 + 8258^2 .

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, 340889 + ... + 341088.

Almost surely, 2^68197700 is an apocalyptic number.

It is an amenable number.

68197700 is an abundant number, since it is smaller than the sum of its proper divisors (79791526).

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

68197700 is a wasteful number, since it uses less digits than its factorization.

68197700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681991 (or 681984 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 68197700 is about 8258.1898743005. The cubic root of 68197700 is about 408.5606878640.

The spelling of 68197700 in words is "sixty-eight million, one hundred ninety-seven thousand, seven hundred".