9691438 has 4 divisors (see below), whose sum is σ = 14537160. Its totient is φ = 4845718.

The previous prime is 9691433. The next prime is 9691439. The reversal of 9691438 is 8341969.

9691438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 9691438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9691433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2422858 + ... + 2422861.

It is an arithmetic number, because the mean of its divisors is an integer number (3634290).

Almost surely, 2^9691438 is an apocalyptic number.

9691438 is a deficient number, since it is larger than the sum of its proper divisors (4845722).

9691438 is a wasteful number, since it uses less digits than its factorization.

9691438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845721.

The product of its digits is 46656, while the sum is 40.

The square root of 9691438 is about 3113.1074507636. The cubic root of 9691438 is about 213.2043561749.

The spelling of 9691438 in words is "nine million, six hundred ninety-one thousand, four hundred thirty-eight".