68336858 has 4 divisors (see below), whose sum is σ = 102505290. Its totient is φ = 34168428.

The previous prime is 68336839. The next prime is 68336867. The reversal of 68336858 is 85863386.

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., 53919649 + 14417209 = 7343^2 + 3797^2 .

It is a super-3 number, since 3×68336858³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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, 17084213 + ... + 17084216.

Almost surely, 2^68336858 is an apocalyptic number.

68336858 is a deficient number, since it is larger than the sum of its proper divisors (34168432).

68336858 is a wasteful number, since it uses less digits than its factorization.

68336858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34168431.

The product of its digits is 829440, while the sum is 47.

The square root of 68336858 is about 8266.6110347590. The cubic root of 68336858 is about 408.8383896110.

The spelling of 68336858 in words is "sixty-eight million, three hundred thirty-six thousand, eight hundred fifty-eight".