18970086 has 8 divisors (see below), whose sum is σ = 37940184. Its totient is φ = 6323360.

The previous prime is 18970057. The next prime is 18970097. The reversal of 18970086 is 68007981.

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

18970086 is an admirable number.

It is a congruent number.

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, 1580835 + ... + 1580846.

It is an arithmetic number, because the mean of its divisors is an integer number (4742523).

Almost surely, 2^18970086 is an apocalyptic number.

18970086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18970086 is a wasteful number, since it uses less digits than its factorization.

18970086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161686.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 18970086 is about 4355.4662207392. The cubic root of 18970086 is about 266.7000517230.

The spelling of 18970086 in words is "eighteen million, nine hundred seventy thousand, eighty-six".