11808534 has 16 divisors (see below), whose sum is σ = 23662080. Its totient is φ = 3928680.

The previous prime is 11808521. The next prime is 11808547. The reversal of 11808534 is 43580811.

11808534 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 (11808521) and next prime (11808547).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (1478880).

Almost surely, 2^11808534 is an apocalyptic number.

11808534 is an abundant number, since it is smaller than the sum of its proper divisors (11853546).

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

11808534 is a wasteful number, since it uses less digits than its factorization.

11808534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 11808534 is about 3436.3547546783. The cubic root of 11808534 is about 227.7186819702.

The spelling of 11808534 in words is "eleven million, eight hundred eight thousand, five hundred thirty-four".