10999973 has 4 divisors (see below), whose sum is σ = 11014380. Its totient is φ = 10985568.

The previous prime is 10999951. The next prime is 10999979. The reversal of 10999973 is 37999901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5230369 + 5769604 = 2287^2 + 2402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10999973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10999979) 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, 5990 + ... + 7607.

It is an arithmetic number, because the mean of its divisors is an integer number (2753595).

Almost surely, 2^10999973 is an apocalyptic number.

It is an amenable number.

10999973 is a deficient number, since it is larger than the sum of its proper divisors (14407).

10999973 is an equidigital number, since it uses as much as digits as its factorization.

10999973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14406.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 10999973 is about 3316.6207199498. The cubic root of 10999973 is about 222.3978270948.

The spelling of 10999973 in words is "ten million, nine hundred ninety-nine thousand, nine hundred seventy-three".