68527747 has 4 divisors (see below), whose sum is σ = 68622736. Its totient is φ = 68432760.

The previous prime is 68527729. The next prime is 68527759. The reversal of 68527747 is 74772586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68527747 - 2²³ = 60139139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68527697 and 68527706.

It is not an unprimeable number, because it can be changed into a prime (68527717) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 46404 + ... + 47857.

It is an arithmetic number, because the mean of its divisors is an integer number (17155684).

Almost surely, 2^68527747 is an apocalyptic number.

68527747 is a deficient number, since it is larger than the sum of its proper divisors (94989).

68527747 is an equidigital number, since it uses as much as digits as its factorization.

68527747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94988.

The product of its digits is 658560, while the sum is 46.

The square root of 68527747 is about 8278.1487664815. The cubic root of 68527747 is about 409.2187124177.

It can be divided in two parts, 685 and 27747, that multiplied together give a triangular number (19006695 = T₆₁₆₅).

The spelling of 68527747 in words is "sixty-eight million, five hundred twenty-seven thousand, seven hundred forty-seven".