11271898 has 16 divisors (see below), whose sum is σ = 18670176. Its totient is φ = 5061040.

The previous prime is 11271893. The next prime is 11271899. The reversal of 11271898 is 89817211.

It is not an unprimeable number, because it can be changed into a prime (11271893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 4912.

It is an arithmetic number, because the mean of its divisors is an integer number (1166886).

Almost surely, 2^11271898 is an apocalyptic number.

11271898 is a deficient number, since it is larger than the sum of its proper divisors (7398278).

11271898 is a wasteful number, since it uses less digits than its factorization.

11271898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269.

The product of its digits is 8064, while the sum is 37.

The square root of 11271898 is about 3357.3647403879. The cubic root of 11271898 is about 224.2155265098.

It can be divided in two parts, 1127 and 1898, that added together give a square (3025 = 55²).

The spelling of 11271898 in words is "eleven million, two hundred seventy-one thousand, eight hundred ninety-eight".