68459957 has 8 divisors (see below), whose sum is σ = 69874200. Its totient is φ = 67060224.

The previous prime is 68459933. The next prime is 68460011. The reversal of 68459957 is 75995486.

It can be written as a sum of positive squares in 4 ways, for example, as 29008996 + 39450961 = 5386^2 + 6281^2 .

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 68459957 - 2¹² = 68455861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68459899 and 68459908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68459257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6173 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (8734275).

Almost surely, 2^68459957 is an apocalyptic number.

It is an amenable number.

68459957 is a deficient number, since it is larger than the sum of its proper divisors (1414243).

68459957 is a wasteful number, since it uses less digits than its factorization.

68459957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7255.

The product of its digits is 2721600, while the sum is 53.

The square root of 68459957 is about 8274.0532388908. The cubic root of 68459957 is about 409.0837301651.

The spelling of 68459957 in words is "sixty-eight million, four hundred fifty-nine thousand, nine hundred fifty-seven".