11278487 has 8 divisors (see below), whose sum is σ = 12839040. Its totient is φ = 9807160.

The previous prime is 11278483. The next prime is 11278493. The reversal of 11278487 is 78487211.

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

It is not a de Polignac number, because 11278487 - 2² = 11278483 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11278487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11278483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22037 + ... + 22542.

It is an arithmetic number, because the mean of its divisors is an integer number (1604880).

Almost surely, 2^11278487 is an apocalyptic number.

11278487 is a deficient number, since it is larger than the sum of its proper divisors (1560553).

11278487 is a wasteful number, since it uses less digits than its factorization.

11278487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44613.

The product of its digits is 25088, while the sum is 38.

The square root of 11278487 is about 3358.3458725986. The cubic root of 11278487 is about 224.2592064749.

The spelling of 11278487 in words is "eleven million, two hundred seventy-eight thousand, four hundred eighty-seven".