8403812 has 6 divisors (see below), whose sum is σ = 14706678. Its totient is φ = 4201904.

The previous prime is 8403803. The next prime is 8403817. The reversal of 8403812 is 2183048.

It can be written as a sum of positive squares in only one way, i.e., 4778596 + 3625216 = 2186^2 + 1904^2 .

It is a super-2 number, since 2×8403812² = 141248112262688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8403817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050473 + ... + 1050480.

It is an arithmetic number, because the mean of its divisors is an integer number (2451113).

Almost surely, 2^8403812 is an apocalyptic number.

It is an amenable number.

8403812 is a deficient number, since it is larger than the sum of its proper divisors (6302866).

8403812 is a wasteful number, since it uses less digits than its factorization.

8403812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100957 (or 2100955 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8403812 is about 2898.9329071229. The cubic root of 8403812 is about 203.3100167357.

The spelling of 8403812 in words is "eight million, four hundred three thousand, eight hundred twelve".