8215230 has 32 divisors (see below), whose sum is σ = 19813248. Its totient is φ = 2180000.

The previous prime is 8215187. The next prime is 8215237. The reversal of 8215230 is 325128.

It is a super-3 number, since 3×8215230³ (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8215197 and 8215206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6985 + ... + 8075.

It is an arithmetic number, because the mean of its divisors is an integer number (619164).

Almost surely, 2^8215230 is an apocalyptic number.

8215230 is an abundant number, since it is smaller than the sum of its proper divisors (11598018).

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

8215230 is a wasteful number, since it uses less digits than its factorization.

8215230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 8215230 is about 2866.2222523733. Note that the first 4 decimals coincide. The cubic root of 8215230 is about 201.7777348093. Note that the first 4 decimals are identical.

The spelling of 8215230 in words is "eight million, two hundred fifteen thousand, two hundred thirty".