11830815 has 24 divisors (see below), whose sum is σ = 20601360. Its totient is φ = 6280704.

The previous prime is 11830813. The next prime is 11830817. The reversal of 11830815 is 51803811.

11830815 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11830813) and next prime (11830817).

It is not a de Polignac number, because 11830815 - 2¹ = 11830813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11830813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12271 + ... + 13199.

It is an arithmetic number, because the mean of its divisors is an integer number (858390).

Almost surely, 2^11830815 is an apocalyptic number.

11830815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11830815 is a deficient number, since it is larger than the sum of its proper divisors (8770545).

11830815 is a wasteful number, since it uses less digits than its factorization.

11830815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 11830815 is about 3439.5951796687. The cubic root of 11830815 is about 227.8618160831.

The spelling of 11830815 in words is "eleven million, eight hundred thirty thousand, eight hundred fifteen".