68888479 has 16 divisors (see below), whose sum is σ = 77967360. Its totient is φ = 60300000.

The previous prime is 68888461. The next prime is 68888489. The reversal of 68888479 is 97488886.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68888479 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 (68888429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91354 + ... + 92104.

It is an arithmetic number, because the mean of its divisors is an integer number (4872960).

Almost surely, 2^68888479 is an apocalyptic number.

68888479 is a deficient number, since it is larger than the sum of its proper divisors (9078881).

68888479 is a wasteful number, since it uses less digits than its factorization.

68888479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

The product of its digits is 6193152, while the sum is 58.

The square root of 68888479 is about 8299.9083729882. The cubic root of 68888479 is about 409.9355024461.

The spelling of 68888479 in words is "sixty-eight million, eight hundred eighty-eight thousand, four hundred seventy-nine".