68879065 has 16 divisors (see below), whose sum is σ = 85615056. Its totient is φ = 53164800.

The previous prime is 68879039. The next prime is 68879099. The reversal of 68879065 is 56097886.

It can be written as a sum of positive squares in 8 ways, for example, as 121801 + 68757264 = 349^2 + 8292^2 .

It is not a de Polignac number, because 68879065 - 2⁵ = 68879033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14035 + ... + 18295.

It is an arithmetic number, because the mean of its divisors is an integer number (5350941).

Almost surely, 2^68879065 is an apocalyptic number.

It is an amenable number.

68879065 is a deficient number, since it is larger than the sum of its proper divisors (16735991).

68879065 is a wasteful number, since it uses less digits than its factorization.

68879065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 68879065 is about 8299.3412389177. The cubic root of 68879065 is about 409.9168282610.

The spelling of 68879065 in words is "sixty-eight million, eight hundred seventy-nine thousand, sixty-five".