8013996 has 72 divisors (see below), whose sum is σ = 21525504. Its totient is φ = 2509920.

The previous prime is 8013989. The next prime is 8014001. The reversal of 8013996 is 6993108.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8013996.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47905 + ... + 48071.

Almost surely, 2^8013996 is an apocalyptic number.

8013996 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8013996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10762752).

8013996 is an abundant number, since it is smaller than the sum of its proper divisors (13511508).

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

8013996 is a wasteful number, since it uses less digits than its factorization.

8013996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 8013996 is about 2830.9002101805. The cubic root of 8013996 is about 200.1165653827.

It can be divided in two parts, 8013 and 996, that added together give a palindrome (9009).

The spelling of 8013996 in words is "eight million, thirteen thousand, nine hundred ninety-six".