11609938 has 8 divisors (see below), whose sum is σ = 17429580. Its totient is φ = 5800080.

The previous prime is 11609933. The next prime is 11609951. The reversal of 11609938 is 83990611.

It can be written as a sum of positive squares in 2 ways, for example, as 10029889 + 1580049 = 3167^2 + 1257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11609897 and 11609906.

It is not an unprimeable number, because it can be changed into a prime (11609933) 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, 2628 + ... + 5488.

Almost surely, 2^11609938 is an apocalyptic number.

11609938 is a deficient number, since it is larger than the sum of its proper divisors (5819642).

11609938 is a wasteful number, since it uses less digits than its factorization.

11609938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 11609938 is about 3407.3359094753. The cubic root of 11609938 is about 226.4348663562.

The spelling of 11609938 in words is "eleven million, six hundred nine thousand, nine hundred thirty-eight".