11001898 has 4 divisors (see below), whose sum is σ = 16502850. Its totient is φ = 5500948.

The previous prime is 11001853. The next prime is 11001911. The reversal of 11001898 is 89810011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89810011 = 821 ⋅109391.

It can be written as a sum of positive squares in only one way, i.e., 10738729 + 263169 = 3277^2 + 513^2 .

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 as a sum of consecutive naturals, namely, 2750473 + ... + 2750476.

Almost surely, 2^11001898 is an apocalyptic number.

11001898 is a deficient number, since it is larger than the sum of its proper divisors (5500952).

11001898 is an equidigital number, since it uses as much as digits as its factorization.

11001898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500951.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 11001898 is about 3316.9109122797. The cubic root of 11001898 is about 222.4107995765.

The spelling of 11001898 in words is "eleven million, one thousand, eight hundred ninety-eight".