8223091 has 4 divisors (see below), whose sum is σ = 8488384. Its totient is φ = 7957800.

The previous prime is 8223079. The next prime is 8223107. The reversal of 8223091 is 1903228.

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

It is a cyclic number.

It is not a de Polignac number, because 8223091 - 2²¹ = 6125939 is a prime.

It is a Duffinian number.

8223091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8223491) 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, 132600 + ... + 132661.

It is an arithmetic number, because the mean of its divisors is an integer number (2122096).

Almost surely, 2^8223091 is an apocalyptic number.

8223091 is a deficient number, since it is larger than the sum of its proper divisors (265293).

8223091 is a wasteful number, since it uses less digits than its factorization.

8223091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265292.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8223091 is about 2867.5932417273. The cubic root of 8223091 is about 201.8420734063.

The spelling of 8223091 in words is "eight million, two hundred twenty-three thousand, ninety-one".