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11498881 = 33912

11498881 has 3 divisors (see below), whose sum is σ = 11502273. Its totient is φ = 11495490.

The previous prime is 11498843. The next prime is 11498909. The reversal of 11498881 is 18889411.

The square root of 11498881 is 3391.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 11498881 - 223 = 3110273 is a prime.

It is a super-2 number, since 2×114988812 = 264448528504322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11498831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1696 + ... + 5086.

It is an arithmetic number, because the mean of its divisors is an integer number (3834091).

Almost surely, 211498881 is an apocalyptic number.

11498881 is the 3391-st square number.

11498881 is the 1696-th centered octagonal number.

It is an amenable number.

11498881 is a deficient number, since it is larger than the sum of its proper divisors (3392).

11498881 is an frugal number, since it uses more digits than its factorization.

11498881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 3391 counting only the distinct ones).

The product of its digits is 18432, while the sum is 40.

The cubic root of 11498881 is about 225.7105504261.

The spelling of 11498881 in words is "eleven million, four hundred ninety-eight thousand, eight hundred eighty-one".

Divisors: 1 3391 11498881