68571289 has 4 divisors (see below), whose sum is σ = 69439360. Its totient is φ = 67703220.

The previous prime is 68571227. The next prime is 68571301. The reversal of 68571289 is 98217586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68571289 - 2²⁵ = 35016857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68571089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433917 + ... + 434074.

It is an arithmetic number, because the mean of its divisors is an integer number (17359840).

Almost surely, 2^68571289 is an apocalyptic number.

It is an amenable number.

68571289 is a deficient number, since it is larger than the sum of its proper divisors (868071).

68571289 is an equidigital number, since it uses as much as digits as its factorization.

68571289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868070.

The product of its digits is 241920, while the sum is 46.

The square root of 68571289 is about 8280.7782846783. The cubic root of 68571289 is about 409.3053655348.

The spelling of 68571289 in words is "sixty-eight million, five hundred seventy-one thousand, two hundred eighty-nine".