11898065 has 4 divisors (see below), whose sum is σ = 14277684. Its totient is φ = 9518448.

The previous prime is 11898059. The next prime is 11898067. The reversal of 11898065 is 56089811.

11898065 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, and also an emirpimes, since its reverse is a distinct semiprime: 56089811 = 7229 ⋅7759.

It can be written as a sum of positive squares in 2 ways, for example, as 9247681 + 2650384 = 3041^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 11898065 - 2⁶ = 11898001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11898067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189802 + ... + 1189811.

It is an arithmetic number, because the mean of its divisors is an integer number (3569421).

Almost surely, 2^11898065 is an apocalyptic number.

It is an amenable number.

11898065 is a deficient number, since it is larger than the sum of its proper divisors (2379619).

11898065 is an equidigital number, since it uses as much as digits as its factorization.

11898065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379618.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 11898065 is about 3449.3571864914. The cubic root of 11898065 is about 228.2927462032.

It can be divided in two parts, 1189806 and 5, that added together give a palindrome (1189811).

The spelling of 11898065 in words is "eleven million, eight hundred ninety-eight thousand, sixty-five".