9671439 has 4 divisors (see below), whose sum is σ = 12895256. Its totient is φ = 6447624.

The previous prime is 9671429. The next prime is 9671447. The reversal of 9671439 is 9341769.

9671439 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, and also an emirpimes, since its reverse is a distinct semiprime: 9341769 = 3 ⋅3113923.

It is not a de Polignac number, because 9671439 - 2⁸ = 9671183 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9671397 and 9671406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9671429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611904 + ... + 1611909.

It is an arithmetic number, because the mean of its divisors is an integer number (3223814).

Almost surely, 2^9671439 is an apocalyptic number.

9671439 is a deficient number, since it is larger than the sum of its proper divisors (3223817).

9671439 is a wasteful number, since it uses less digits than its factorization.

9671439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223816.

The product of its digits is 40824, while the sum is 39.

The square root of 9671439 is about 3109.8937280878. The cubic root of 9671439 is about 213.0576008559.

The spelling of 9671439 in words is "nine million, six hundred seventy-one thousand, four hundred thirty-nine".