8715438 has 48 divisors (see below), whose sum is σ = 19918080. Its totient is φ = 2855736.

The previous prime is 8715431. The next prime is 8715449. The reversal of 8715438 is 8345178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8715431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38281 + ... + 38507.

It is an arithmetic number, because the mean of its divisors is an integer number (414960).

Almost surely, 2^8715438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8715438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9959040).

8715438 is an abundant number, since it is smaller than the sum of its proper divisors (11202642).

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

8715438 is a wasteful number, since it uses less digits than its factorization.

8715438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 311 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 8715438 is about 2952.1920669225. The cubic root of 8715438 is about 205.7925929556.

The spelling of 8715438 in words is "eight million, seven hundred fifteen thousand, four hundred thirty-eight".