68868357 has 4 divisors (see below), whose sum is σ = 91824480. Its totient is φ = 45912236.

The previous prime is 68868313. The next prime is 68868409. The reversal of 68868357 is 75386886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68868357 - 2⁷ = 68868229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68868257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11478057 + ... + 11478062.

It is an arithmetic number, because the mean of its divisors is an integer number (22956120).

Almost surely, 2^68868357 is an apocalyptic number.

It is an amenable number.

68868357 is a deficient number, since it is larger than the sum of its proper divisors (22956123).

68868357 is a wasteful number, since it uses less digits than its factorization.

68868357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956122.

The product of its digits is 1935360, while the sum is 51.

The square root of 68868357 is about 8298.6961024007. The cubic root of 68868357 is about 409.8955851499.

The spelling of 68868357 in words is "sixty-eight million, eight hundred sixty-eight thousand, three hundred fifty-seven".