11881798 has 4 divisors (see below), whose sum is σ = 17822700. Its totient is φ = 5940898.

The previous prime is 11881789. The next prime is 11881799. The reversal of 11881798 is 89718811.

11881798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11881799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2970448 + ... + 2970451.

It is an arithmetic number, because the mean of its divisors is an integer number (4455675).

Almost surely, 2^11881798 is an apocalyptic number.

11881798 is a deficient number, since it is larger than the sum of its proper divisors (5940902).

11881798 is an equidigital number, since it uses as much as digits as its factorization.

11881798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940901.

The product of its digits is 32256, while the sum is 43.

The square root of 11881798 is about 3446.9984044093. The cubic root of 11881798 is about 228.1886583588.

The spelling of 11881798 in words is "eleven million, eight hundred eighty-one thousand, seven hundred ninety-eight".