18835085 has 4 divisors (see below), whose sum is σ = 22602108. Its totient is φ = 15068064.

The previous prime is 18835081. The next prime is 18835097. The reversal of 18835085 is 58053881.

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 7739524 + 11095561 = 2782^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 18835085 - 2² = 18835081 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 (18835081) 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, 1883504 + ... + 1883513.

It is an arithmetic number, because the mean of its divisors is an integer number (5650527).

Almost surely, 2^18835085 is an apocalyptic number.

It is an amenable number.

18835085 is a deficient number, since it is larger than the sum of its proper divisors (3767023).

18835085 is an equidigital number, since it uses as much as digits as its factorization.

18835085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767022.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 18835085 is about 4339.9406677972. The cubic root of 18835085 is about 266.0658862174.

Subtracting 18835085 from its reverse (58053881), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 18835085 in words is "eighteen million, eight hundred thirty-five thousand, eighty-five".