11505673 has 4 divisors (see below), whose sum is σ = 11512980. Its totient is φ = 11498368.

The previous prime is 11505667. The next prime is 11505679. The reversal of 11505673 is 37650511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (11505667) and next prime (11505679).

It can be written as a sum of positive squares in 2 ways, for example, as 5419584 + 6086089 = 2328^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 11505673 - 2⁹ = 11505161 is a prime.

It is a super-2 number, since 2×11505673² = 264761022365858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11505679) 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, 208 + ... + 4801.

It is an arithmetic number, because the mean of its divisors is an integer number (2878245).

Almost surely, 2^11505673 is an apocalyptic number.

It is an amenable number.

11505673 is a deficient number, since it is larger than the sum of its proper divisors (7307).

11505673 is an equidigital number, since it uses as much as digits as its factorization.

11505673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7306.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 11505673 is about 3392.0013266507. The cubic root of 11505673 is about 225.7549815414.

The spelling of 11505673 in words is "eleven million, five hundred five thousand, six hundred seventy-three".