18099677 has 4 divisors (see below), whose sum is σ = 18110400. Its totient is φ = 18088956.

The previous prime is 18099671. The next prime is 18099721. The reversal of 18099677 is 77699081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18099677 - 2⁴ = 18099661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18099671) by changing a digit.

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, 2213 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (4527600).

Almost surely, 2^18099677 is an apocalyptic number.

It is an amenable number.

18099677 is a deficient number, since it is larger than the sum of its proper divisors (10723).

18099677 is an equidigital number, since it uses as much as digits as its factorization.

18099677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10722.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 18099677 is about 4254.3715164522. The cubic root of 18099677 is about 262.5570040979.

The spelling of 18099677 in words is "eighteen million, ninety-nine thousand, six hundred seventy-seven".