68068874 has 4 divisors (see below), whose sum is σ = 102103314. Its totient is φ = 34034436.

The previous prime is 68068841. The next prime is 68068879. The reversal of 68068874 is 47886086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47886086 = 2 ⋅23943043.

It can be written as a sum of positive squares in only one way, i.e., 67354849 + 714025 = 8207^2 + 845^2 .

It is not an unprimeable number, because it can be changed into a prime (68068879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17017217 + ... + 17017220.

Almost surely, 2^68068874 is an apocalyptic number.

68068874 is a deficient number, since it is larger than the sum of its proper divisors (34034440).

68068874 is a wasteful number, since it uses less digits than its factorization.

68068874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34034439.

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 68068874 is about 8250.3862939865. The cubic root of 68068874 is about 408.3032675720.

The spelling of 68068874 in words is "sixty-eight million, sixty-eight thousand, eight hundred seventy-four".