19486085 has 4 divisors (see below), whose sum is σ = 23383308. Its totient is φ = 15588864.

The previous prime is 19486081. The next prime is 19486099. The reversal of 19486085 is 58068491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13498276 + 5987809 = 3674^2 + 2447^2 .

It is a cyclic number.

It is not a de Polignac number, because 19486085 - 2² = 19486081 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 (19486081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948604 + ... + 1948613.

It is an arithmetic number, because the mean of its divisors is an integer number (5845827).

Almost surely, 2^19486085 is an apocalyptic number.

It is an amenable number.

19486085 is a deficient number, since it is larger than the sum of its proper divisors (3897223).

19486085 is an equidigital number, since it uses as much as digits as its factorization.

19486085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897222.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 19486085 is about 4414.3045884941. The cubic root of 19486085 is about 269.0965919477.

The spelling of 19486085 in words is "nineteen million, four hundred eighty-six thousand, eighty-five".