10918973 has 4 divisors (see below), whose sum is σ = 11758908. Its totient is φ = 10079040.

The previous prime is 10918967. The next prime is 10918991. The reversal of 10918973 is 37981901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37981901 = 23 ⋅1651387.

It can be written as a sum of positive squares in 2 ways, for example, as 6416089 + 4502884 = 2533^2 + 2122^2 .

It is a cyclic number.

It is not a de Polignac number, because 10918973 - 2¹⁸ = 10656829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10918903) 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, 419948 + ... + 419973.

It is an arithmetic number, because the mean of its divisors is an integer number (2939727).

Almost surely, 2^10918973 is an apocalyptic number.

10918973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10918973 is a deficient number, since it is larger than the sum of its proper divisors (839935).

10918973 is an equidigital number, since it uses as much as digits as its factorization.

10918973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839934.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 10918973 is about 3304.3869325489. The cubic root of 10918973 is about 221.8505947632.

It can be divided in two parts, 109189 and 73, that multiplied together give a palindrome (7970797).

The spelling of 10918973 in words is "ten million, nine hundred eighteen thousand, nine hundred seventy-three".