68488405 has 8 divisors (see below), whose sum is σ = 83413152. Its totient is φ = 53972688.

The previous prime is 68488391. The next prime is 68488423. The reversal of 68488405 is 50488486.

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 68488405 - 2¹¹ = 68486357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 101887 + ... + 102556.

It is an arithmetic number, because the mean of its divisors is an integer number (10426644).

Almost surely, 2^68488405 is an apocalyptic number.

It is an amenable number.

68488405 is a deficient number, since it is larger than the sum of its proper divisors (14924747).

68488405 is a wasteful number, since it uses less digits than its factorization.

68488405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204515.

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 68488405 is about 8275.7721694111. The cubic root of 68488405 is about 409.1403861669.

The spelling of 68488405 in words is "sixty-eight million, four hundred eighty-eight thousand, four hundred five".