83823994 has 4 divisors (see below), whose sum is σ = 125735994. Its totient is φ = 41911996.

The previous prime is 83823989. The next prime is 83823997. The reversal of 83823994 is 49932838.

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

It can be written as a sum of positive squares in only one way, i.e., 83448225 + 375769 = 9135^2 + 613^2 .

It is a super-2 number, since 2×83823994² = 14052923940224072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83823997) 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 as a sum of consecutive naturals, namely, 20955997 + ... + 20956000.

Almost surely, 2^83823994 is an apocalyptic number.

83823994 is a deficient number, since it is larger than the sum of its proper divisors (41912000).

83823994 is a wasteful number, since it uses less digits than its factorization.

83823994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41911999.

The product of its digits is 373248, while the sum is 46.

The square root of 83823994 is about 9155.5444403924. The cubic root of 83823994 is about 437.6458184954.

The spelling of 83823994 in words is "eighty-three million, eight hundred twenty-three thousand, nine hundred ninety-four".