83349993 has 4 divisors (see below), whose sum is σ = 111133328. Its totient is φ = 55566660.

The previous prime is 83349991. The next prime is 83350019. The reversal of 83349993 is 39994338.

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 not a de Polignac number, because 83349993 - 2¹ = 83349991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83349991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13891663 + ... + 13891668.

It is an arithmetic number, because the mean of its divisors is an integer number (27783332).

Almost surely, 2^83349993 is an apocalyptic number.

It is an amenable number.

83349993 is a deficient number, since it is larger than the sum of its proper divisors (27783335).

83349993 is a wasteful number, since it uses less digits than its factorization.

83349993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27783334.

The product of its digits is 629856, while the sum is 48.

The square root of 83349993 is about 9129.6217336755. The cubic root of 83349993 is about 436.8193375474.

The spelling of 83349993 in words is "eighty-three million, three hundred forty-nine thousand, nine hundred ninety-three".