18672086 has 16 divisors (see below), whose sum is σ = 30065904. Its totient is φ = 8665344.

The previous prime is 18672053. The next prime is 18672107. The reversal of 18672086 is 68027681.

It is a Curzon number.

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, 1280 + ... + 6243.

It is an arithmetic number, because the mean of its divisors is an integer number (1879119).

Almost surely, 2^18672086 is an apocalyptic number.

18672086 is a deficient number, since it is larger than the sum of its proper divisors (11393818).

18672086 is a wasteful number, since it uses less digits than its factorization.

18672086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7615.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 18672086 is about 4321.1209193912. The cubic root of 18672086 is about 265.2961492775.

The spelling of 18672086 in words is "eighteen million, six hundred seventy-two thousand, eighty-six".