68845983 has 4 divisors (see below), whose sum is σ = 91794648. Its totient is φ = 45897320.

The previous prime is 68845981. The next prime is 68845991. The reversal of 68845983 is 38954886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68845983 - 2¹ = 68845981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68845981) 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, 11474328 + ... + 11474333.

It is an arithmetic number, because the mean of its divisors is an integer number (22948662).

Almost surely, 2^68845983 is an apocalyptic number.

68845983 is a deficient number, since it is larger than the sum of its proper divisors (22948665).

68845983 is a wasteful number, since it uses less digits than its factorization.

68845983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22948664.

The product of its digits is 1658880, while the sum is 51.

The square root of 68845983 is about 8297.3479497970. The cubic root of 68845983 is about 409.8511912872.

The spelling of 68845983 in words is "sixty-eight million, eight hundred forty-five thousand, nine hundred eighty-three".