8427996 has 48 divisors (see below), whose sum is σ = 22170400. Its totient is φ = 2768256.

The previous prime is 8427977. The next prime is 8428003. The reversal of 8427996 is 6997248.

It is a happy number.

It is a super-2 number, since 2×8427996² = 142062233152032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7350 + ... + 8418.

Almost surely, 2^8427996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8427996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11085200).

8427996 is an abundant number, since it is smaller than the sum of its proper divisors (13742404).

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

8427996 is a wasteful number, since it uses less digits than its factorization.

8427996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1147 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 8427996 is about 2903.1011005475. The cubic root of 8427996 is about 203.5048545266.

The spelling of 8427996 in words is "eight million, four hundred twenty-seven thousand, nine hundred ninety-six".