9438709 has 4 divisors (see below), whose sum is σ = 10787104. Its totient is φ = 8090316.

The previous prime is 9438701. The next prime is 9438719. The reversal of 9438709 is 9078349.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9078349 = 7 ⋅1296907.

It is a cyclic number.

It is not a de Polignac number, because 9438709 - 2³ = 9438701 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9438701) 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, 674187 + ... + 674200.

It is an arithmetic number, because the mean of its divisors is an integer number (2696776).

Almost surely, 2^9438709 is an apocalyptic number.

It is an amenable number.

9438709 is a deficient number, since it is larger than the sum of its proper divisors (1348395).

9438709 is a wasteful number, since it uses less digits than its factorization.

9438709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348394.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 9438709 is about 3072.2481996089. The cubic root of 9438709 is about 211.3347262350.

The spelling of 9438709 in words is "nine million, four hundred thirty-eight thousand, seven hundred nine".