11047975 has 12 divisors (see below), whose sum is σ = 13743664. Its totient is φ = 8809920.

The previous prime is 11047973. The next prime is 11048003. The reversal of 11047975 is 57974011.

It is not a de Polignac number, because 11047975 - 2¹ = 11047973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11047975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11047973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10942 + ... + 11908.

Almost surely, 2^11047975 is an apocalyptic number.

11047975 is a deficient number, since it is larger than the sum of its proper divisors (2695689).

11047975 is an equidigital number, since it uses as much as digits as its factorization.

11047975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 11047975 is about 3323.8494249890. The cubic root of 11047975 is about 222.7208596843.

The spelling of 11047975 in words is "eleven million, forty-seven thousand, nine hundred seventy-five".