18839086 has 8 divisors (see below), whose sum is σ = 32295600. Its totient is φ = 8073888.

The previous prime is 18839081. The next prime is 18839101. The reversal of 18839086 is 68093881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18839086² = 709822322630792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18839081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672811 + ... + 672838.

It is an arithmetic number, because the mean of its divisors is an integer number (4036950).

Almost surely, 2^18839086 is an apocalyptic number.

18839086 is a deficient number, since it is larger than the sum of its proper divisors (13456514).

18839086 is a wasteful number, since it uses less digits than its factorization.

18839086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345658.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 18839086 is about 4340.4015943228. The cubic root of 18839086 is about 266.0847243634.

The spelling of 18839086 in words is "eighteen million, eight hundred thirty-nine thousand, eighty-six".