68975705 has 8 divisors (see below), whose sum is σ = 82815432. Its totient is φ = 55150848.

The previous prime is 68975671. The next prime is 68975759. The reversal of 68975705 is 50757986.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1784896 + 67190809 = 1336^2 + 8197^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68975705 - 2¹⁰ = 68974681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68975705.

It is an unprimeable number.

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, 16289 + ... + 20081.

It is an arithmetic number, because the mean of its divisors is an integer number (10351929).

Almost surely, 2^68975705 is an apocalyptic number.

It is an amenable number.

68975705 is a deficient number, since it is larger than the sum of its proper divisors (13839727).

68975705 is a wasteful number, since it uses less digits than its factorization.

68975705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7435.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 68975705 is about 8305.1613470179. The cubic root of 68975705 is about 410.1084484089.

The spelling of 68975705 in words is "sixty-eight million, nine hundred seventy-five thousand, seven hundred five".