68106407 has 4 divisors (see below), whose sum is σ = 68126736. Its totient is φ = 68086080.

The previous prime is 68106383. The next prime is 68106461. The reversal of 68106407 is 70460186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68106407 - 2¹⁶ = 68040871 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 (68106487) 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, 3818 + ... + 12279.

It is an arithmetic number, because the mean of its divisors is an integer number (17031684).

Almost surely, 2^68106407 is an apocalyptic number.

68106407 is a deficient number, since it is larger than the sum of its proper divisors (20329).

68106407 is a wasteful number, since it uses less digits than its factorization.

68106407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20328.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 68106407 is about 8252.6606012849. The cubic root of 68106407 is about 408.3782995693.

The spelling of 68106407 in words is "sixty-eight million, one hundred six thousand, four hundred seven".