68538547 has 8 divisors (see below), whose sum is σ = 85450752. Its totient is φ = 53406600.

The previous prime is 68538539. The next prime is 68538557. The reversal of 68538547 is 74583586.

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 68538547 - 2³ = 68538539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68538497 and 68538506.

It is not an unprimeable number, because it can be changed into a prime (68538527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444979 + ... + 445132.

It is an arithmetic number, because the mean of its divisors is an integer number (10681344).

Almost surely, 2^68538547 is an apocalyptic number.

68538547 is a deficient number, since it is larger than the sum of its proper divisors (16912205).

68538547 is a wasteful number, since it uses less digits than its factorization.

68538547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890129.

The product of its digits is 806400, while the sum is 46.

The square root of 68538547 is about 8278.8010605401. The cubic root of 68538547 is about 409.2402089654.

It can be divided in two parts, 6853 and 8547, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 68538547 in words is "sixty-eight million, five hundred thirty-eight thousand, five hundred forty-seven".