8194321 has 4 divisors (see below), whose sum is σ = 8200192. Its totient is φ = 8188452.

The previous prime is 8194283. The next prime is 8194337. The reversal of 8194321 is 1234918.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8194321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8194321.

It is not an unprimeable number, because it can be changed into a prime (8194721) 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, 496 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (2050048).

Almost surely, 2^8194321 is an apocalyptic number.

It is an amenable number.

8194321 is a deficient number, since it is larger than the sum of its proper divisors (5871).

8194321 is a wasteful number, since it uses less digits than its factorization.

8194321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5870.

The product of its digits is 1728, while the sum is 28.

The square root of 8194321 is about 2862.5724444981. The cubic root of 8194321 is about 201.6064044456.

It can be divided in two parts, 8194 and 321, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 8194321 in words is "eight million, one hundred ninety-four thousand, three hundred twenty-one".