11757217 has 8 divisors (see below), whose sum is σ = 12520872. Its totient is φ = 11001600.

The previous prime is 11757173. The next prime is 11757223. The reversal of 11757217 is 71275711.

11757217 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 4 ways, for example, as 2047761 + 9709456 = 1431^2 + 3116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11757217 - 2¹⁹ = 11232929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11757287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167 + ... + 4987.

It is an arithmetic number, because the mean of its divisors is an integer number (1565109).

Almost surely, 2^11757217 is an apocalyptic number.

11757217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11757217 is a deficient number, since it is larger than the sum of its proper divisors (763655).

11757217 is a wasteful number, since it uses less digits than its factorization.

11757217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019.

The product of its digits is 3430, while the sum is 31.

The square root of 11757217 is about 3428.8798462472. The cubic root of 11757217 is about 227.3883330738.

The spelling of 11757217 in words is "eleven million, seven hundred fifty-seven thousand, two hundred seventeen".