68248291 has 4 divisors (see below), whose sum is σ = 71215632. Its totient is φ = 65280952.

The previous prime is 68248289. The next prime is 68248303. The reversal of 68248291 is 19284286.

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 68248291 - 2¹ = 68248289 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68248261) 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, 1483636 + ... + 1483681.

It is an arithmetic number, because the mean of its divisors is an integer number (17803908).

Almost surely, 2^68248291 is an apocalyptic number.

68248291 is a deficient number, since it is larger than the sum of its proper divisors (2967341).

68248291 is a wasteful number, since it uses less digits than its factorization.

68248291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967340.

The product of its digits is 55296, while the sum is 40.

The square root of 68248291 is about 8261.2523868963. The cubic root of 68248291 is about 408.6616902184.

The spelling of 68248291 in words is "sixty-eight million, two hundred forty-eight thousand, two hundred ninety-one".