11897284 has 12 divisors (see below), whose sum is σ = 23794624. Its totient is φ = 5098824.

The previous prime is 11897267. The next prime is 11897299. The reversal of 11897284 is 48279811.

It is a happy number.

11897284 is an admirable number.

It is an unprimeable number.

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, 212424 + ... + 212479.

Almost surely, 2^11897284 is an apocalyptic number.

11897284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11897284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11897284 is a wasteful number, since it uses less digits than its factorization.

11897284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424914 (or 424912 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 11897284 is about 3449.2439751343. The cubic root of 11897284 is about 228.2877509782.

The spelling of 11897284 in words is "eleven million, eight hundred ninety-seven thousand, two hundred eighty-four".