68570289 has 6 divisors (see below), whose sum is σ = 99045986. Its totient is φ = 45713520.

The previous prime is 68570273. The next prime is 68570329. The reversal of 68570289 is 98207586.

It can be written as a sum of positive squares in only one way, i.e., 67371264 + 1199025 = 8208^2 + 1095^2 .

It is not a de Polignac number, because 68570289 - 2⁴ = 68570273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68570219) 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 5 ways as a sum of consecutive naturals, for example, 3809452 + ... + 3809469.

Almost surely, 2^68570289 is an apocalyptic number.

It is an amenable number.

68570289 is a deficient number, since it is larger than the sum of its proper divisors (30475697).

68570289 is a wasteful number, since it uses less digits than its factorization.

68570289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618927 (or 7618924 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 68570289 is about 8280.7179036603. The cubic root of 68570289 is about 409.3033758422.

The spelling of 68570289 in words is "sixty-eight million, five hundred seventy thousand, two hundred eighty-nine".