68784098 has 4 divisors (see below), whose sum is σ = 103176150. Its totient is φ = 34392048.

The previous prime is 68784097. The next prime is 68784109. The reversal of 68784098 is 89048786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52519009 + 16265089 = 7247^2 + 4033^2 .

It is not an unprimeable number, because it can be changed into a prime (68784097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17196023 + ... + 17196026.

Almost surely, 2^68784098 is an apocalyptic number.

68784098 is a deficient number, since it is larger than the sum of its proper divisors (34392052).

68784098 is a wasteful number, since it uses less digits than its factorization.

68784098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34392051.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 68784098 is about 8293.6179077650. The cubic root of 68784098 is about 409.7283506925.

The spelling of 68784098 in words is "sixty-eight million, seven hundred eighty-four thousand, ninety-eight".