68359073 has 4 divisors (see below), whose sum is σ = 68408340. Its totient is φ = 68309808.

The previous prime is 68359069. The next prime is 68359079. The reversal of 68359073 is 37095386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12229009 + 56130064 = 3497^2 + 7492^2 .

It is a cyclic number.

It is not a de Polignac number, because 68359073 - 2² = 68359069 is a prime.

It is a super-2 number, since 2×68359073² = 9345925722838658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68359073.

It is not an unprimeable number, because it can be changed into a prime (68359079) 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, 22490 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (17102085).

Almost surely, 2^68359073 is an apocalyptic number.

It is an amenable number.

68359073 is a deficient number, since it is larger than the sum of its proper divisors (49267).

68359073 is a wasteful number, since it uses less digits than its factorization.

68359073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49266.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 68359073 is about 8267.9545838133. The cubic root of 68359073 is about 408.8826866473.

The spelling of 68359073 in words is "sixty-eight million, three hundred fifty-nine thousand, seventy-three".