68668369 has 8 divisors (see below), whose sum is σ = 85612608. Its totient is φ = 53507760.

The previous prime is 68668351. The next prime is 68668387. The reversal of 68668369 is 96386686.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68668351) and next prime (68668387).

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 68668369 - 2⁷ = 68668241 is a prime.

It is a super-2 number, since 2×68668369² = 9430689802240322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68668309) 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, 445822 + ... + 445975.

It is an arithmetic number, because the mean of its divisors is an integer number (10701576).

Almost surely, 2^68668369 is an apocalyptic number.

It is an amenable number.

68668369 is a deficient number, since it is larger than the sum of its proper divisors (16944239).

68668369 is a wasteful number, since it uses less digits than its factorization.

68668369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891815.

The product of its digits is 2239488, while the sum is 52.

The square root of 68668369 is about 8286.6379793014. The cubic root of 68668369 is about 409.4984328685.

The spelling of 68668369 in words is "sixty-eight million, six hundred sixty-eight thousand, three hundred sixty-nine".