11638073 has 6 divisors (see below), whose sum is σ = 11762874. Its totient is φ = 11514576.

The previous prime is 11638061. The next prime is 11638087. The reversal of 11638073 is 37083611.

11638073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8922169 + 2715904 = 2987^2 + 1648^2 .

It is not a de Polignac number, because 11638073 - 2⁸ = 11637817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11638273) 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, 10061 + ... + 11157.

It is an arithmetic number, because the mean of its divisors is an integer number (1960479).

Almost surely, 2^11638073 is an apocalyptic number.

It is an amenable number.

11638073 is a deficient number, since it is larger than the sum of its proper divisors (124801).

11638073 is an equidigital number, since it uses as much as digits as its factorization.

11638073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 11638073 is about 3411.4620033059. The cubic root of 11638073 is about 226.6176294824.

The spelling of 11638073 in words is "eleven million, six hundred thirty-eight thousand, seventy-three".