11715705 has 16 divisors (see below), whose sum is σ = 20828160. Its totient is φ = 6248304.

The previous prime is 11715701. The next prime is 11715713. The reversal of 11715705 is 50751711.

11715705 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11715705 - 2² = 11715701 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (11715701) 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, 43257 + ... + 43526.

It is an arithmetic number, because the mean of its divisors is an integer number (1301760).

Almost surely, 2^11715705 is an apocalyptic number.

11715705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11715705 is a deficient number, since it is larger than the sum of its proper divisors (9112455).

11715705 is an equidigital number, since it uses as much as digits as its factorization.

11715705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86797 (or 86791 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The square root of 11715705 is about 3422.8212047958. The cubic root of 11715705 is about 227.1203990408.

It can be divided in two parts, 11 and 715705, that added together give a square (715716 = 846²).

The spelling of 11715705 in words is "eleven million, seven hundred fifteen thousand, seven hundred five".