11897279 has 8 divisors (see below), whose sum is σ = 12843360. Its totient is φ = 10986976.

The previous prime is 11897267. The next prime is 11897299. The reversal of 11897279 is 97279811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11897279 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 (11897209) 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, 8252 + ... + 9585.

It is an arithmetic number, because the mean of its divisors is an integer number (1605420).

Almost surely, 2^11897279 is an apocalyptic number.

11897279 is a deficient number, since it is larger than the sum of its proper divisors (946081).

11897279 is a wasteful number, since it uses less digits than its factorization.

11897279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17889.

The product of its digits is 63504, while the sum is 44.

The square root of 11897279 is about 3449.2432503377. The cubic root of 11897279 is about 228.2877189978.

The spelling of 11897279 in words is "eleven million, eight hundred ninety-seven thousand, two hundred seventy-nine".