11859906 has 32 divisors (see below), whose sum is σ = 24974208. Its totient is φ = 3749760.

The previous prime is 11859901. The next prime is 11859907. The reversal of 11859906 is 60995811.

It is not an unprimeable number, because it can be changed into a prime (11859901) 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, 8451 + ... + 9753.

It is an arithmetic number, because the mean of its divisors is an integer number (780444).

Almost surely, 2^11859906 is an apocalyptic number.

11859906 is an abundant number, since it is smaller than the sum of its proper divisors (13114302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11859906 is a wasteful number, since it uses less digits than its factorization.

11859906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 11859906 is about 3443.8214239417. The cubic root of 11859906 is about 228.0484276940.

The spelling of 11859906 in words is "eleven million, eight hundred fifty-nine thousand, nine hundred six".