68853881 has 4 divisors (see below), whose sum is σ = 71847552. Its totient is φ = 65860212.

The previous prime is 68853877. The next prime is 68853887. The reversal of 68853881 is 18835886.

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 68853881 - 2² = 68853877 is a prime.

It is a super-2 number, since 2×68853881² = 9481713857524322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68853887) 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, 1496801 + ... + 1496846.

It is an arithmetic number, because the mean of its divisors is an integer number (17961888).

Almost surely, 2^68853881 is an apocalyptic number.

It is an amenable number.

68853881 is a deficient number, since it is larger than the sum of its proper divisors (2993671).

68853881 is a wasteful number, since it uses less digits than its factorization.

68853881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993670.

The product of its digits is 368640, while the sum is 47.

The square root of 68853881 is about 8297.8238713533. The cubic root of 68853881 is about 409.8668633753.

The spelling of 68853881 in words is "sixty-eight million, eight hundred fifty-three thousand, eight hundred eighty-one".