68776647 has 8 divisors (see below), whose sum is σ = 95689344. Its totient is φ = 43857528.

The previous prime is 68776627. The next prime is 68776649. The reversal of 68776647 is 74667786.

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

It is not a de Polignac number, because 68776647 - 2⁶ = 68776583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68776647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68776649) 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, 498313 + ... + 498450.

It is an arithmetic number, because the mean of its divisors is an integer number (11961168).

Almost surely, 2^68776647 is an apocalyptic number.

68776647 is a deficient number, since it is larger than the sum of its proper divisors (26912697).

68776647 is a wasteful number, since it uses less digits than its factorization.

68776647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996789.

The product of its digits is 2370816, while the sum is 51.

The square root of 68776647 is about 8293.1686947752. The cubic root of 68776647 is about 409.7135556247.

The spelling of 68776647 in words is "sixty-eight million, seven hundred seventy-six thousand, six hundred forty-seven".