11297618 has 4 divisors (see below), whose sum is σ = 16946430. Its totient is φ = 5648808.

The previous prime is 11297603. The next prime is 11297621. The reversal of 11297618 is 81679211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81679211 = 991 ⋅82421.

It can be written as a sum of positive squares in only one way, i.e., 9840769 + 1456849 = 3137^2 + 1207^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2824403 + ... + 2824406.

Almost surely, 2^11297618 is an apocalyptic number.

11297618 is a deficient number, since it is larger than the sum of its proper divisors (5648812).

11297618 is an equidigital number, since it uses as much as digits as its factorization.

11297618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5648811.

The product of its digits is 6048, while the sum is 35.

The square root of 11297618 is about 3361.1929429891. The cubic root of 11297618 is about 224.3859338563.

The spelling of 11297618 in words is "eleven million, two hundred ninety-seven thousand, six hundred eighteen".