18747116 has 12 divisors (see below), whose sum is σ = 34234032. Its totient is φ = 8965968.

The previous prime is 18747109. The next prime is 18747121. The reversal of 18747116 is 61174781.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101795 + ... + 101978.

It is an arithmetic number, because the mean of its divisors is an integer number (2852836).

Almost surely, 2^18747116 is an apocalyptic number.

It is an amenable number.

18747116 is a deficient number, since it is larger than the sum of its proper divisors (15486916).

18747116 is a wasteful number, since it uses less digits than its factorization.

18747116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203800 (or 203798 counting only the distinct ones).

The product of its digits is 9408, while the sum is 35.

The square root of 18747116 is about 4329.7939904804. The cubic root of 18747116 is about 265.6510206758.

The spelling of 18747116 in words is "eighteen million, seven hundred forty-seven thousand, one hundred sixteen".