68854857 has 4 divisors (see below), whose sum is σ = 91806480. Its totient is φ = 45903236.

The previous prime is 68854853. The next prime is 68854883. The reversal of 68854857 is 75845886.

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 68854857 - 2² = 68854853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68854853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11475807 + ... + 11475812.

It is an arithmetic number, because the mean of its divisors is an integer number (22951620).

Almost surely, 2^68854857 is an apocalyptic number.

It is an amenable number.

68854857 is a deficient number, since it is larger than the sum of its proper divisors (22951623).

68854857 is a wasteful number, since it uses less digits than its factorization.

68854857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22951622.

The product of its digits is 2150400, while the sum is 51.

The square root of 68854857 is about 8297.8826817448. The cubic root of 68854857 is about 409.8687999796.

The spelling of 68854857 in words is "sixty-eight million, eight hundred fifty-four thousand, eight hundred fifty-seven".