68329857 has 16 divisors (see below), whose sum is σ = 92334528. Its totient is φ = 44943360.

The previous prime is 68329843. The next prime is 68329867. The reversal of 68329857 is 75892386.

It is not a de Polignac number, because 68329857 - 2⁴ = 68329841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68329837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119382 + ... + 119952.

It is an arithmetic number, because the mean of its divisors is an integer number (5770908).

Almost surely, 2^68329857 is an apocalyptic number.

It is an amenable number.

68329857 is a deficient number, since it is larger than the sum of its proper divisors (24004671).

68329857 is a wasteful number, since it uses less digits than its factorization.

68329857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its digits is 725760, while the sum is 48.

The square root of 68329857 is about 8266.1875734827. The cubic root of 68329857 is about 408.8244275247.

The spelling of 68329857 in words is "sixty-eight million, three hundred twenty-nine thousand, eight hundred fifty-seven".