11717745 has 16 divisors (see below), whose sum is σ = 20190912. Its totient is φ = 5768640.

The previous prime is 11717729. The next prime is 11717749. The reversal of 11717745 is 54771711.

11717745 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11717745 - 2⁴ = 11717729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11717749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29851 + ... + 30240.

It is an arithmetic number, because the mean of its divisors is an integer number (1261932).

Almost surely, 2^11717745 is an apocalyptic number.

11717745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11717745 is a deficient number, since it is larger than the sum of its proper divisors (8473167).

11717745 is a wasteful number, since it uses less digits than its factorization.

11717745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60112.

The product of its digits is 6860, while the sum is 33.

The square root of 11717745 is about 3423.1191916146. The cubic root of 11717745 is about 227.1335807408.

The spelling of 11717745 in words is "eleven million, seven hundred seventeen thousand, seven hundred forty-five".