11842815 has 16 divisors (see below), whose sum is σ = 19772928. Its totient is φ = 6041376.

The previous prime is 11842813. The next prime is 11842841. The reversal of 11842815 is 51824811.

It is a happy number.

11842815 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11842815 - 2¹ = 11842813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11842813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16819 + ... + 17508.

It is an arithmetic number, because the mean of its divisors is an integer number (1235808).

Almost surely, 2^11842815 is an apocalyptic number.

11842815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11842815 is a deficient number, since it is larger than the sum of its proper divisors (7930113).

11842815 is a wasteful number, since it uses less digits than its factorization.

11842815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34358.

The product of its digits is 2560, while the sum is 30.

The square root of 11842815 is about 3441.3391288857. The cubic root of 11842815 is about 227.9388301585.

The spelling of 11842815 in words is "eleven million, eight hundred forty-two thousand, eight hundred fifteen".