19836085 has 8 divisors (see below), whose sum is σ = 23858136. Its totient is φ = 15832320.

The previous prime is 19836083. The next prime is 19836101. The reversal of 19836085 is 58063891.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8282884 + 11553201 = 2878^2 + 3399^2 .

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

It is not a de Polignac number, because 19836085 - 2¹ = 19836083 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 (19836083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056 + ... + 6625.

It is an arithmetic number, because the mean of its divisors is an integer number (2982267).

Almost surely, 2^19836085 is an apocalyptic number.

It is an amenable number.

19836085 is a deficient number, since it is larger than the sum of its proper divisors (4022051).

19836085 is an equidigital number, since it uses as much as digits as its factorization.

19836085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 19836085 is about 4453.7719968584. The cubic root of 19836085 is about 270.6981702420.

The spelling of 19836085 in words is "nineteen million, eight hundred thirty-six thousand, eighty-five".