11170639 has 4 divisors (see below), whose sum is σ = 11182720. Its totient is φ = 11158560.

The previous prime is 11170609. The next prime is 11170661. The reversal of 11170639 is 93607111.

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

It is a cyclic number.

It is not a de Polignac number, because 11170639 - 2⁹ = 11170127 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 (11170609) 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, 4527 + ... + 6544.

It is an arithmetic number, because the mean of its divisors is an integer number (2795680).

Almost surely, 2^11170639 is an apocalyptic number.

11170639 is a deficient number, since it is larger than the sum of its proper divisors (12081).

11170639 is a wasteful number, since it uses less digits than its factorization.

11170639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12080.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 11170639 is about 3342.2505890492. The cubic root of 11170639 is about 223.5421064527.

It can be divided in two parts, 111706 and 39, that multiplied together give a palindrome (4356534).

The spelling of 11170639 in words is "eleven million, one hundred seventy thousand, six hundred thirty-nine".