11249447 has 4 divisors (see below), whose sum is σ = 12272136. Its totient is φ = 10226760.

The previous prime is 11249431. The next prime is 11249449. The reversal of 11249447 is 74494211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74494211 = 11 ⋅6772201.

It is a cyclic number.

It is not a de Polignac number, because 11249447 - 2⁴ = 11249431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11249449) 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, 511328 + ... + 511349.

It is an arithmetic number, because the mean of its divisors is an integer number (3068034).

Almost surely, 2^11249447 is an apocalyptic number.

11249447 is a deficient number, since it is larger than the sum of its proper divisors (1022689).

11249447 is a wasteful number, since it uses less digits than its factorization.

11249447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022688.

The product of its digits is 8064, while the sum is 32.

The square root of 11249447 is about 3354.0195288638. The cubic root of 11249447 is about 224.0665658354.

The spelling of 11249447 in words is "eleven million, two hundred forty-nine thousand, four hundred forty-seven".