8204091 has 8 divisors (see below), whose sum is σ = 12501504. Its totient is φ = 4688040.

The previous prime is 8204087. The next prime is 8204093. The reversal of 8204091 is 1904028.

8204091 = 759² + 760² + ... + 772².

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

It is not a de Polignac number, because 8204091 - 2² = 8204087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8204093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195315 + ... + 195356.

It is an arithmetic number, because the mean of its divisors is an integer number (1562688).

Almost surely, 2^8204091 is an apocalyptic number.

8204091 is a deficient number, since it is larger than the sum of its proper divisors (4297413).

8204091 is a wasteful number, since it uses less digits than its factorization.

8204091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390681.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8204091 is about 2864.2784431685. The cubic root of 8204091 is about 201.6864969989.

The spelling of 8204091 in words is "eight million, two hundred four thousand, ninety-one".