11678013 has 10 divisors (see below), whose sum is σ = 17445054. Its totient is φ = 7785288.

The previous prime is 11678003. The next prime is 11678021. The reversal of 11678013 is 31087611.

11678013 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., 9253764 + 2424249 = 3042^2 + 1557^2 .

It is not a de Polignac number, because 11678013 - 2¹⁰ = 11676989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11678003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 72006 + ... + 72167.

Almost surely, 2^11678013 is an apocalyptic number.

It is an amenable number.

11678013 is a deficient number, since it is larger than the sum of its proper divisors (5767041).

11678013 is an equidigital number, since it uses as much as digits as its factorization.

11678013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144185 (or 144176 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 11678013 is about 3417.3107848131. The cubic root of 11678013 is about 226.8765719446.

It can be divided in two parts, 1167 and 8013, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 11678013 in words is "eleven million, six hundred seventy-eight thousand, thirteen".