84623443 has 4 divisors (see below), whose sum is σ = 84641848. Its totient is φ = 84605040.

The previous prime is 84623423. The next prime is 84623489. The reversal of 84623443 is 34432648.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 84623443 - 2⁹ = 84622931 is a prime.

It is a super-2 number, since 2×84623443² = 14322254210348498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84623399 and 84623408.

It is not an unprimeable number, because it can be changed into a prime (84623423) 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, 4255 + ... + 13687.

It is an arithmetic number, because the mean of its divisors is an integer number (21160462).

Almost surely, 2^84623443 is an apocalyptic number.

84623443 is a deficient number, since it is larger than the sum of its proper divisors (18405).

84623443 is an equidigital number, since it uses as much as digits as its factorization.

84623443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404.

The product of its digits is 55296, while the sum is 34.

The square root of 84623443 is about 9199.1001190334. The cubic root of 84623443 is about 439.0327288139.

The spelling of 84623443 in words is "eighty-four million, six hundred twenty-three thousand, four hundred forty-three".