8223994 has 8 divisors (see below), whose sum is σ = 12761460. Its totient is φ = 3970176.

The previous prime is 8223991. The next prime is 8223997. The reversal of 8223994 is 4993228.

It is an interprime number because it is at equal distance from previous prime (8223991) and next prime (8223997).

It can be written as a sum of positive squares in 2 ways, for example, as 8196769 + 27225 = 2863^2 + 165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8223991) 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 in 3 ways as a sum of consecutive naturals, for example, 70839 + ... + 70954.

Almost surely, 2^8223994 is an apocalyptic number.

8223994 is a deficient number, since it is larger than the sum of its proper divisors (4537466).

8223994 is a wasteful number, since it uses less digits than its factorization.

8223994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141824.

The product of its digits is 31104, while the sum is 37.

The square root of 8223994 is about 2867.7506865137. The cubic root of 8223994 is about 201.8494614116.

It can be divided in two parts, 822399 and 4, that added together give a triangular number (822403 = T₁₂₈₂).

The spelling of 8223994 in words is "eight million, two hundred twenty-three thousand, nine hundred ninety-four".