68147079 has 48 divisors (see below), whose sum is σ = 122981376. Its totient is φ = 32662080.

The previous prime is 68147077. The next prime is 68147089. The reversal of 68147079 is 97074186.

It is not a de Polignac number, because 68147079 - 2¹ = 68147077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68147079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68147077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32002 + ... + 34064.

It is an arithmetic number, because the mean of its divisors is an integer number (2562112).

Almost surely, 2^68147079 is an apocalyptic number.

68147079 is a deficient number, since it is larger than the sum of its proper divisors (54834297).

68147079 is a wasteful number, since it uses less digits than its factorization.

68147079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2097 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 68147079 is about 8255.1244085114. The cubic root of 68147079 is about 408.4595756084.

The spelling of 68147079 in words is "sixty-eight million, one hundred forty-seven thousand, seventy-nine".