12011698 has 4 divisors (see below), whose sum is σ = 18017550. Its totient is φ = 6005848.

The previous prime is 12011689. The next prime is 12011711. The reversal of 12011698 is 89611021.

It is a happy number.

12011698 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: 89611021 = 563 ⋅159167.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 567009 = 3383^2 + 753^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002923 + ... + 3002926.

Almost surely, 2^12011698 is an apocalyptic number.

12011698 is a deficient number, since it is larger than the sum of its proper divisors (6005852).

12011698 is an equidigital number, since it uses as much as digits as its factorization.

12011698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005851.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 12011698 is about 3465.7896647085. The cubic root of 12011698 is about 229.0172180566.

The spelling of 12011698 in words is "twelve million, eleven thousand, six hundred ninety-eight".