68395874 has 4 divisors (see below), whose sum is σ = 102593814. Its totient is φ = 34197936.

The previous prime is 68395867. The next prime is 68395897. The reversal of 68395874 is 47859386.

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., 37515625 + 30880249 = 6125^2 + 5557^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17098967 + ... + 17098970.

Almost surely, 2^68395874 is an apocalyptic number.

68395874 is a deficient number, since it is larger than the sum of its proper divisors (34197940).

68395874 is a wasteful number, since it uses less digits than its factorization.

68395874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34197939.

The product of its digits is 1451520, while the sum is 50.

The square root of 68395874 is about 8270.1798045750. The cubic root of 68395874 is about 408.9560472692.

The spelling of 68395874 in words is "sixty-eight million, three hundred ninety-five thousand, eight hundred seventy-four".