68269393 has 8 divisors (see below), whose sum is σ = 70759080. Its totient is φ = 65788800.

The previous prime is 68269391. The next prime is 68269417. The reversal of 68269393 is 39396286.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32353344 + 35916049 = 5688^2 + 5993^2 .

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 68269393 - 2¹ = 68269391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68269391) 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 in 7 ways as a sum of consecutive naturals, for example, 15471 + ... + 19387.

It is an arithmetic number, because the mean of its divisors is an integer number (8844885).

Almost surely, 2^68269393 is an apocalyptic number.

It is an amenable number.

68269393 is a deficient number, since it is larger than the sum of its proper divisors (2489687).

68269393 is a wasteful number, since it uses less digits than its factorization.

68269393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547.

The product of its digits is 419904, while the sum is 46.

The square root of 68269393 is about 8262.5294553181. The cubic root of 68269393 is about 408.7038045347.

The spelling of 68269393 in words is "sixty-eight million, two hundred sixty-nine thousand, three hundred ninety-three".