8697438 has 48 divisors (see below), whose sum is σ = 20447856. Its totient is φ = 2661120.

The previous prime is 8697433. The next prime is 8697499. The reversal of 8697438 is 8347968.

It is a happy number.

8697438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8697393 and 8697402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8697433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12828 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (425997).

Almost surely, 2^8697438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8697438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10223928).

8697438 is an abundant number, since it is smaller than the sum of its proper divisors (11750418).

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

8697438 is a wasteful number, since it uses less digits than its factorization.

8697438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 726 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8697438 is about 2949.1419090983. The cubic root of 8697438 is about 205.6508207829.

The spelling of 8697438 in words is "eight million, six hundred ninety-seven thousand, four hundred thirty-eight".