11673613 has 6 divisors (see below), whose sum is σ = 13579566. Its totient is φ = 10005912.

The previous prime is 11673601. The next prime is 11673617. The reversal of 11673613 is 31637611.

It can be written as a sum of positive squares in only one way, i.e., 10323369 + 1350244 = 3213^2 + 1162^2 .

It is not a de Polignac number, because 11673613 - 2²¹ = 9576461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11673617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119070 + ... + 119167.

It is an arithmetic number, because the mean of its divisors is an integer number (2263261).

Almost surely, 2^11673613 is an apocalyptic number.

It is an amenable number.

11673613 is a deficient number, since it is larger than the sum of its proper divisors (1905953).

11673613 is an equidigital number, since it uses as much as digits as its factorization.

11673613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238251 (or 238244 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 11673613 is about 3416.6669430894. Note that the first 3 decimals coincide. The cubic root of 11673613 is about 226.8480744506.

The spelling of 11673613 in words is "eleven million, six hundred seventy-three thousand, six hundred thirteen".