68868653 has 4 divisors (see below), whose sum is σ = 78707040. Its totient is φ = 59030268.

The previous prime is 68868637. The next prime is 68868659. The reversal of 68868653 is 35686886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68868653 - 2⁴ = 68868637 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 (68868659) 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, 4919183 + ... + 4919196.

It is an arithmetic number, because the mean of its divisors is an integer number (19676760).

Almost surely, 2^68868653 is an apocalyptic number.

It is an amenable number.

68868653 is a deficient number, since it is larger than the sum of its proper divisors (9838387).

68868653 is an equidigital number, since it uses as much as digits as its factorization.

68868653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838386.

The product of its digits is 1658880, while the sum is 50.

The square root of 68868653 is about 8298.7139365085. The cubic root of 68868653 is about 409.8961724004.

The spelling of 68868653 in words is "sixty-eight million, eight hundred sixty-eight thousand, six hundred fifty-three".