11897798 has 8 divisors (see below), whose sum is σ = 19469160. Its totient is φ = 5408080.

The previous prime is 11897791. The next prime is 11897803. The reversal of 11897798 is 89779811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897791) 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, 270383 + ... + 270426.

It is an arithmetic number, because the mean of its divisors is an integer number (2433645).

Almost surely, 2^11897798 is an apocalyptic number.

11897798 is a deficient number, since it is larger than the sum of its proper divisors (7571362).

11897798 is a wasteful number, since it uses less digits than its factorization.

11897798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540822.

The product of its digits is 254016, while the sum is 50.

The square root of 11897798 is about 3449.3184834109. The cubic root of 11897798 is about 228.2910385132.

The spelling of 11897798 in words is "eleven million, eight hundred ninety-seven thousand, seven hundred ninety-eight".