8243854 has 4 divisors (see below), whose sum is σ = 12365784. Its totient is φ = 4121926.

The previous prime is 8243849. The next prime is 8243857. The reversal of 8243854 is 4583428.

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

It is a super-2 number, since 2×8243854² = 135922257546632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060962 + ... + 2060965.

It is an arithmetic number, because the mean of its divisors is an integer number (3091446).

Almost surely, 2^8243854 is an apocalyptic number.

8243854 is a deficient number, since it is larger than the sum of its proper divisors (4121930).

8243854 is a wasteful number, since it uses less digits than its factorization.

8243854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121929.

The product of its digits is 30720, while the sum is 34.

The square root of 8243854 is about 2871.2112426640. The cubic root of 8243854 is about 202.0118118767.

The spelling of 8243854 in words is "eight million, two hundred forty-three thousand, eight hundred fifty-four".