8428312 has 8 divisors (see below), whose sum is σ = 15803100. Its totient is φ = 4214152.

The previous prime is 8428307. The next prime is 8428313. The reversal of 8428312 is 2138248.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8428313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526762 + ... + 526777.

Almost surely, 2^8428312 is an apocalyptic number.

It is an amenable number.

8428312 is a deficient number, since it is larger than the sum of its proper divisors (7374788).

8428312 is a wasteful number, since it uses less digits than its factorization.

8428312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053545 (or 1053541 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 8428312 is about 2903.1555245973. The cubic root of 8428312 is about 203.5073979043.

Subtracting from 8428312 its reverse (2138248), we obtain a square (6290064 = 2508²).

The spelling of 8428312 in words is "eight million, four hundred twenty-eight thousand, three hundred twelve".