68223077 has 8 divisors (see below), whose sum is σ = 73966200. Its totient is φ = 62550720.

The previous prime is 68223061. The next prime is 68223101. The reversal of 68223077 is 77032286.

It can be written as a sum of positive squares in 4 ways, for example, as 3806401 + 64416676 = 1951^2 + 8026^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68223077 - 2⁴ = 68223061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68223017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15674 + ... + 19547.

It is an arithmetic number, because the mean of its divisors is an integer number (9245775).

Almost surely, 2^68223077 is an apocalyptic number.

It is an amenable number.

68223077 is a deficient number, since it is larger than the sum of its proper divisors (5743123).

68223077 is a wasteful number, since it uses less digits than its factorization.

68223077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35383.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 68223077 is about 8259.7262061160. The cubic root of 68223077 is about 408.6113579933.

The spelling of 68223077 in words is "sixty-eight million, two hundred twenty-three thousand, seventy-seven".