7013888 has 80 divisors (see below), whose sum is σ = 17022720. Its totient is φ = 2820096.

The previous prime is 7013887. The next prime is 7013899. The reversal of 7013888 is 8883107.

It is a super-4 number, since 4×7013888⁴ (a number of 28 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7013887) 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 in 7 ways as a sum of consecutive naturals, for example, 68045 + ... + 68147.

It is an arithmetic number, because the mean of its divisors is an integer number (212784).

Almost surely, 2^7013888 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 7013888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8511360).

7013888 is an abundant number, since it is smaller than the sum of its proper divisors (10008832).

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

7013888 is a wasteful number, since it uses less digits than its factorization.

7013888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 7013888 is about 2648.3745958606. The cubic root of 7013888 is about 191.4195432206.

The spelling of 7013888 in words is "seven million, thirteen thousand, eight hundred eighty-eight".