68493605 has 8 divisors (see below), whose sum is σ = 82716792. Its totient is φ = 54445248.

The previous prime is 68493583. The next prime is 68493619. The reversal of 68493605 is 50639486.

It can be written as a sum of positive squares in 4 ways, for example, as 51076 + 68442529 = 226^2 + 8273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68493605 - 2¹⁰ = 68492581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42842 + ... + 44411.

It is an arithmetic number, because the mean of its divisors is an integer number (10339599).

Almost surely, 2^68493605 is an apocalyptic number.

It is an amenable number.

68493605 is a deficient number, since it is larger than the sum of its proper divisors (14223187).

68493605 is a wasteful number, since it uses less digits than its factorization.

68493605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87415.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 68493605 is about 8276.0863335275. The cubic root of 68493605 is about 409.1507406017.

The spelling of 68493605 in words is "sixty-eight million, four hundred ninety-three thousand, six hundred five".