11287279 has 2 divisors, whose sum is σ = 11287280. Its totient is φ = 11287278.

The previous prime is 11287271. The next prime is 11287291. The reversal of 11287279 is 97278211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11287279 - 2³ = 11287271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11287271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643639 + 5643640.

It is an arithmetic number, because the mean of its divisors is an integer number (5643640).

Almost surely, 2^11287279 is an apocalyptic number.

11287279 is a deficient number, since it is larger than the sum of its proper divisors (1).

11287279 is an equidigital number, since it uses as much as digits as its factorization.

11287279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 37.

The square root of 11287279 is about 3359.6545953416. The cubic root of 11287279 is about 224.3174641363.

The spelling of 11287279 in words is "eleven million, two hundred eighty-seven thousand, two hundred seventy-nine".