8403212 has 6 divisors (see below), whose sum is σ = 14705628. Its totient is φ = 4201604.

The previous prime is 8403179. The next prime is 8403217. The reversal of 8403212 is 2123048.

It is a super-2 number, since 2×8403212² = 141227943833888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8403217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050398 + ... + 1050405.

It is an arithmetic number, because the mean of its divisors is an integer number (2450938).

Almost surely, 2^8403212 is an apocalyptic number.

It is an amenable number.

8403212 is a deficient number, since it is larger than the sum of its proper divisors (6302416).

8403212 is a wasteful number, since it uses less digits than its factorization.

8403212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100807 (or 2100805 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 8403212 is about 2898.8294189207. The cubic root of 8403212 is about 203.3051781016.

The spelling of 8403212 in words is "eight million, four hundred three thousand, two hundred twelve".