11871297 has 6 divisors (see below), whose sum is σ = 17147442. Its totient is φ = 7914192.

The previous prime is 11871283. The next prime is 11871313. The reversal of 11871297 is 79217811.

It can be written as a sum of positive squares in only one way, i.e., 11553201 + 318096 = 3399^2 + 564^2 .

It is not a de Polignac number, because 11871297 - 2⁴ = 11871281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11871227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 659508 + ... + 659525.

It is an arithmetic number, because the mean of its divisors is an integer number (2857907).

Almost surely, 2^11871297 is an apocalyptic number.

It is an amenable number.

11871297 is a deficient number, since it is larger than the sum of its proper divisors (5276145).

11871297 is a wasteful number, since it uses less digits than its factorization.

11871297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319039 (or 1319036 counting only the distinct ones).

The product of its digits is 7056, while the sum is 36.

The square root of 11871297 is about 3445.4748584194. The cubic root of 11871297 is about 228.1214150184.

The spelling of 11871297 in words is "eleven million, eight hundred seventy-one thousand, two hundred ninety-seven".