11487855 has 8 divisors (see below), whose sum is σ = 18380592. Its totient is φ = 6126848.

The previous prime is 11487851. The next prime is 11487859. The reversal of 11487855 is 55878411.

It is an interprime number because it is at equal distance from previous prime (11487851) and next prime (11487859).

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 11487855 - 2² = 11487851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11487851) 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, 382914 + ... + 382943.

It is an arithmetic number, because the mean of its divisors is an integer number (2297574).

Almost surely, 2^11487855 is an apocalyptic number.

11487855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11487855 is a deficient number, since it is larger than the sum of its proper divisors (6892737).

11487855 is an equidigital number, since it uses as much as digits as its factorization.

11487855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765865.

The product of its digits is 44800, while the sum is 39.

The square root of 11487855 is about 3389.3738359762. The cubic root of 11487855 is about 225.6383845519.

The spelling of 11487855 in words is "eleven million, four hundred eighty-seven thousand, eight hundred fifty-five".