68993853 has 8 divisors (see below), whose sum is σ = 93365088. Its totient is φ = 45309264.

The previous prime is 68993851. The next prime is 68993861. The reversal of 68993853 is 35839986.

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

It is not a de Polignac number, because 68993853 - 2¹ = 68993851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68993796 and 68993805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68993851) 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 7 ways as a sum of consecutive naturals, for example, 171426 + ... + 171827.

It is an arithmetic number, because the mean of its divisors is an integer number (11670636).

Almost surely, 2^68993853 is an apocalyptic number.

It is an amenable number.

68993853 is a deficient number, since it is larger than the sum of its proper divisors (24371235).

68993853 is a wasteful number, since it uses less digits than its factorization.

68993853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343323.

The product of its digits is 1399680, while the sum is 51.

The square root of 68993853 is about 8306.2538487576. The cubic root of 68993853 is about 410.1444127410.

The spelling of 68993853 in words is "sixty-eight million, nine hundred ninety-three thousand, eight hundred fifty-three".