68351093 has 4 divisors (see below), whose sum is σ = 68523660. Its totient is φ = 68178528.

The previous prime is 68351083. The next prime is 68351111. The reversal of 68351093 is 39015386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39015386 = 2 ⋅19507693.

It can be written as a sum of positive squares in 2 ways, for example, as 57866449 + 10484644 = 7607^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 68351093 - 2⁴ = 68351077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68351053) 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 in 3 ways as a sum of consecutive naturals, for example, 85688 + ... + 86481.

It is an arithmetic number, because the mean of its divisors is an integer number (17130915).

Almost surely, 2^68351093 is an apocalyptic number.

It is an amenable number.

68351093 is a deficient number, since it is larger than the sum of its proper divisors (172567).

68351093 is a wasteful number, since it uses less digits than its factorization.

68351093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172566.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 68351093 is about 8267.4719836235. The cubic root of 68351093 is about 408.8667755147.

The spelling of 68351093 in words is "sixty-eight million, three hundred fifty-one thousand, ninety-three".