83363893 has 4 divisors (see below), whose sum is σ = 86238540. Its totient is φ = 80489248.

The previous prime is 83363851. The next prime is 83363921. The reversal of 83363893 is 39836338.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19731364 + 63632529 = 4442^2 + 7977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83363893 is a prime.

It is a super-2 number, since 2×83363893² = 13899077312230898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83363803) 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, 1437280 + ... + 1437337.

It is an arithmetic number, because the mean of its divisors is an integer number (21559635).

Almost surely, 2^83363893 is an apocalyptic number.

It is an amenable number.

83363893 is a deficient number, since it is larger than the sum of its proper divisors (2874647).

83363893 is a wasteful number, since it uses less digits than its factorization.

83363893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874646.

The product of its digits is 279936, while the sum is 43.

The square root of 83363893 is about 9130.3829602049. The cubic root of 83363893 is about 436.8436184984.

The spelling of 83363893 in words is "eighty-three million, three hundred sixty-three thousand, eight hundred ninety-three".