68589545 has 4 divisors (see below), whose sum is σ = 82307460. Its totient is φ = 54871632.

The previous prime is 68589523. The next prime is 68589551. The reversal of 68589545 is 54598586.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8743849 + 59845696 = 2957^2 + 7736^2 .

It is a cyclic number.

It is not a de Polignac number, because 68589545 - 2¹² = 68585449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68589493 and 68589502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6858950 + ... + 6858959.

It is an arithmetic number, because the mean of its divisors is an integer number (20576865).

Almost surely, 2^68589545 is an apocalyptic number.

It is an amenable number.

68589545 is a deficient number, since it is larger than the sum of its proper divisors (13717915).

68589545 is a wasteful number, since it uses less digits than its factorization.

68589545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13717914.

The product of its digits is 1728000, while the sum is 50.

The square root of 68589545 is about 8281.8805231662. The cubic root of 68589545 is about 409.3416859630.

The spelling of 68589545 in words is "sixty-eight million, five hundred eighty-nine thousand, five hundred forty-five".