68259291 has 8 divisors (see below), whose sum is σ = 91677264. Its totient is φ = 45173760.

The previous prime is 68259287. The next prime is 68259341. The reversal of 68259291 is 19295286.

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

It is not a de Polignac number, because 68259291 - 2² = 68259287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68259221) by changing a digit.

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, 82630 + ... + 83451.

It is an arithmetic number, because the mean of its divisors is an integer number (11459658).

Almost surely, 2^68259291 is an apocalyptic number.

68259291 is a deficient number, since it is larger than the sum of its proper divisors (23417973).

68259291 is a wasteful number, since it uses less digits than its factorization.

68259291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166221.

The product of its digits is 77760, while the sum is 42.

The square root of 68259291 is about 8261.9181186937. The cubic root of 68259291 is about 408.6836445513.

The spelling of 68259291 in words is "sixty-eight million, two hundred fifty-nine thousand, two hundred ninety-one".