83998443 has 4 divisors (see below), whose sum is σ = 111997928. Its totient is φ = 55998960.

The previous prime is 83998441. The next prime is 83998459. The reversal of 83998443 is 34489938.

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

It is not a de Polignac number, because 83998443 - 2¹ = 83998441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83998392 and 83998401.

It is not an unprimeable number, because it can be changed into a prime (83998441) 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, 13999738 + ... + 13999743.

It is an arithmetic number, because the mean of its divisors is an integer number (27999482).

Almost surely, 2^83998443 is an apocalyptic number.

83998443 is a deficient number, since it is larger than the sum of its proper divisors (27999485).

83998443 is a wasteful number, since it uses less digits than its factorization.

83998443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27999484.

The product of its digits is 746496, while the sum is 48.

The square root of 83998443 is about 9165.0664482043. The cubic root of 83998443 is about 437.9492080549.

The spelling of 83998443 in words is "eighty-three million, nine hundred ninety-eight thousand, four hundred forty-three".