18649107 has 6 divisors (see below), whose sum is σ = 26937612. Its totient is φ = 12432732.

The previous prime is 18649097. The next prime is 18649109. The reversal of 18649107 is 70194681.

18649107 is a `hidden beast` number, since 1 + 8 + 649 + 1 + 0 + 7 = 666.

It is not a de Polignac number, because 18649107 - 2⁷ = 18648979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18649109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1036053 + ... + 1036070.

It is an arithmetic number, because the mean of its divisors is an integer number (4489602).

Almost surely, 2^18649107 is an apocalyptic number.

18649107 is a deficient number, since it is larger than the sum of its proper divisors (8288505).

18649107 is a wasteful number, since it uses less digits than its factorization.

18649107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072129 (or 2072126 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 18649107 is about 4318.4611842646. The cubic root of 18649107 is about 265.1872747660.

The spelling of 18649107 in words is "eighteen million, six hundred forty-nine thousand, one hundred seven".