11896891 has 8 divisors (see below), whose sum is σ = 12217968. Its totient is φ = 11580000.

The previous prime is 11896879. The next prime is 11896903. The reversal of 11896891 is 19869811.

It is a happy number.

11896891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11896879) and next prime (11896903).

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

It is a cyclic number.

It is not a de Polignac number, because 11896891 - 2⁷ = 11896763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11896811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5196 + ... + 7126.

It is an arithmetic number, because the mean of its divisors is an integer number (1527246).

Almost surely, 2^11896891 is an apocalyptic number.

11896891 is a deficient number, since it is larger than the sum of its proper divisors (321077).

11896891 is a wasteful number, since it uses less digits than its factorization.

11896891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093.

The product of its digits is 31104, while the sum is 43.

The square root of 11896891 is about 3449.1870056580. The cubic root of 11896891 is about 228.2852372931.

The spelling of 11896891 in words is "eleven million, eight hundred ninety-six thousand, eight hundred ninety-one".