68715958 has 4 divisors (see below), whose sum is σ = 103073940. Its totient is φ = 34357978.

The previous prime is 68715953. The next prime is 68715967. The reversal of 68715958 is 85951786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85951786 = 2 ⋅42975893.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68715953) by changing a digit.

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, 17178988 + ... + 17178991.

It is an arithmetic number, because the mean of its divisors is an integer number (25768485).

Almost surely, 2^68715958 is an apocalyptic number.

68715958 is a deficient number, since it is larger than the sum of its proper divisors (34357982).

68715958 is a wasteful number, since it uses less digits than its factorization.

68715958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34357981.

The product of its digits is 604800, while the sum is 49.

The square root of 68715958 is about 8289.5089118717. The cubic root of 68715958 is about 409.5930087804.

The spelling of 68715958 in words is "sixty-eight million, seven hundred fifteen thousand, nine hundred fifty-eight".