83993361 has 4 divisors (see below), whose sum is σ = 111991152. Its totient is φ = 55995572.

The previous prime is 83993347. The next prime is 83993363. The reversal of 83993361 is 16339938.

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 83993361 - 2¹⁹ = 83469073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83993363) 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, 13998891 + ... + 13998896.

It is an arithmetic number, because the mean of its divisors is an integer number (27997788).

Almost surely, 2^83993361 is an apocalyptic number.

It is an amenable number.

83993361 is a deficient number, since it is larger than the sum of its proper divisors (27997791).

83993361 is a wasteful number, since it uses less digits than its factorization.

83993361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27997790.

The product of its digits is 104976, while the sum is 42.

The square root of 83993361 is about 9164.7891956116. The cubic root of 83993361 is about 437.9403757374.

The spelling of 83993361 in words is "eighty-three million, nine hundred ninety-three thousand, three hundred sixty-one".