8193390 has 16 divisors (see below), whose sum is σ = 19664208. Its totient is φ = 2184896.

The previous prime is 8193343. The next prime is 8193397. The reversal of 8193390 is 933918.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136527 + ... + 136586.

It is an arithmetic number, because the mean of its divisors is an integer number (1229013).

Almost surely, 2^8193390 is an apocalyptic number.

8193390 is an abundant number, since it is smaller than the sum of its proper divisors (11470818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8193390 is a wasteful number, since it uses less digits than its factorization.

8193390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273123.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 8193390 is about 2862.4098239071. The cubic root of 8193390 is about 201.5987689677.

The spelling of 8193390 in words is "eight million, one hundred ninety-three thousand, three hundred ninety".