68542983 has 16 divisors (see below), whose sum is σ = 101783040. Its totient is φ = 45588312.

The previous prime is 68542973. The next prime is 68543003. The reversal of 68542983 is 38924586.

It is not a de Polignac number, because 68542983 - 2⁵ = 68542951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68542933) 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 15 ways as a sum of consecutive naturals, for example, 9760 + ... + 15242.

It is an arithmetic number, because the mean of its divisors is an integer number (6361440).

Almost surely, 2^68542983 is an apocalyptic number.

68542983 is a deficient number, since it is larger than the sum of its proper divisors (33240057).

68542983 is a wasteful number, since it uses less digits than its factorization.

68542983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955 (or 5949 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 68542983 is about 8279.0689693950. The cubic root of 68542983 is about 409.2490378190.

The spelling of 68542983 in words is "sixty-eight million, five hundred forty-two thousand, nine hundred eighty-three".