10938409 has 4 divisors (see below), whose sum is σ = 11414016. Its totient is φ = 10462804.

The previous prime is 10938407. The next prime is 10938413. The reversal of 10938409 is 90483901.

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: 90483901 = 5741 ⋅15761.

It is a cyclic number.

It is not a de Polignac number, because 10938409 - 2¹ = 10938407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10938407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237769 + ... + 237814.

It is an arithmetic number, because the mean of its divisors is an integer number (2853504).

Almost surely, 2^10938409 is an apocalyptic number.

It is an amenable number.

10938409 is a deficient number, since it is larger than the sum of its proper divisors (475607).

10938409 is an equidigital number, since it uses as much as digits as its factorization.

10938409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475606.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 10938409 is about 3307.3265638579. The cubic root of 10938409 is about 221.9821496347.

The spelling of 10938409 in words is "ten million, nine hundred thirty-eight thousand, four hundred nine".