8390212 has 24 divisors (see below), whose sum is σ = 15386112. Its totient is φ = 3998400.

The previous prime is 8390183. The next prime is 8390219. The reversal of 8390212 is 2120938.

It is not an unprimeable number, because it can be changed into a prime (8390219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8328 + ... + 9280.

It is an arithmetic number, because the mean of its divisors is an integer number (641088).

Almost surely, 2^8390212 is an apocalyptic number.

It is an amenable number.

8390212 is a deficient number, since it is larger than the sum of its proper divisors (6995900).

8390212 is a wasteful number, since it uses less digits than its factorization.

8390212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1057 counting only the distinct ones).

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

The square root of 8390212 is about 2896.5862666249. The cubic root of 8390212 is about 203.2002844252.

The spelling of 8390212 in words is "eight million, three hundred ninety thousand, two hundred twelve".