11284947 has 8 divisors (see below), whose sum is σ = 16718480. Its totient is φ = 7523280.

The previous prime is 11284943. The next prime is 11284951. The reversal of 11284947 is 74948211.

11284947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11284943) and next prime (11284951).

It is not a de Polignac number, because 11284947 - 2² = 11284943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11284943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208954 + ... + 209007.

It is an arithmetic number, because the mean of its divisors is an integer number (2089810).

Almost surely, 2^11284947 is an apocalyptic number.

11284947 is a deficient number, since it is larger than the sum of its proper divisors (5433533).

11284947 is an equidigital number, since it uses as much as digits as its factorization.

11284947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417970 (or 417964 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 11284947 is about 3359.3075179269. The cubic root of 11284947 is about 224.3020147572.

It can be divided in two parts, 112849 and 47, that added together give a square (112896 = 336²).

The spelling of 11284947 in words is "eleven million, two hundred eighty-four thousand, nine hundred forty-seven".