11291898 has 8 divisors (see below), whose sum is σ = 22583808. Its totient is φ = 3763964.

The previous prime is 11291897. The next prime is 11291899. The reversal of 11291898 is 89819211.

It is an interprime number because it is at equal distance from previous prime (11291897) and next prime (11291899).

It is a sphenic number, since it is the product of 3 distinct primes.

11291898 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11291897) 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 3 ways as a sum of consecutive naturals, for example, 940986 + ... + 940997.

It is an arithmetic number, because the mean of its divisors is an integer number (2822976).

Almost surely, 2^11291898 is an apocalyptic number.

11291898 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.

11291898 is a wasteful number, since it uses less digits than its factorization.

11291898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881988.

The product of its digits is 10368, while the sum is 39.

The square root of 11291898 is about 3360.3419468858. The cubic root of 11291898 is about 224.3480584914.

The spelling of 11291898 in words is "eleven million, two hundred ninety-one thousand, eight hundred ninety-eight".