67668785 has 8 divisors (see below), whose sum is σ = 85476480. Its totient is φ = 51285744.

The previous prime is 67668781. The next prime is 67668791. The reversal of 67668785 is 58786676.

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 67668785 - 2² = 67668781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67668781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356057 + ... + 356246.

It is an arithmetic number, because the mean of its divisors is an integer number (10684560).

Almost surely, 2^67668785 is an apocalyptic number.

It is an amenable number.

67668785 is a deficient number, since it is larger than the sum of its proper divisors (17807695).

67668785 is a wasteful number, since it uses less digits than its factorization.

67668785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712327.

The product of its digits is 3386880, while the sum is 53.

The square root of 67668785 is about 8226.1038772921. The cubic root of 67668785 is about 407.5017325883.

It can be divided in two parts, 6766 and 8785, that added together give a palindrome (15551).

The spelling of 67668785 in words is "sixty-seven million, six hundred sixty-eight thousand, seven hundred eighty-five".