18806755 has 16 divisors (see below), whose sum is σ = 25691904. Its totient is φ = 13082080.

The previous prime is 18806747. The next prime is 18806759. The reversal of 18806755 is 55760881.

It is not a de Polignac number, because 18806755 - 2³ = 18806747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18806759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6169 + ... + 8698.

It is an arithmetic number, because the mean of its divisors is an integer number (1605744).

Almost surely, 2^18806755 is an apocalyptic number.

18806755 is a deficient number, since it is larger than the sum of its proper divisors (6885149).

18806755 is a wasteful number, since it uses less digits than its factorization.

18806755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14906.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 18806755 is about 4336.6755700652. The cubic root of 18806755 is about 265.9324220138.

The spelling of 18806755 in words is "eighteen million, eight hundred six thousand, seven hundred fifty-five".