8438085 has 12 divisors (see below), whose sum is σ = 14626092. Its totient is φ = 4500288.

The previous prime is 8438083. The next prime is 8438093. The reversal of 8438085 is 5808348.

It can be written as a sum of positive squares in 2 ways, for example, as 5503716 + 2934369 = 2346^2 + 1713^2 .

It is not a de Polignac number, because 8438085 - 2¹ = 8438083 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93712 + ... + 93801.

It is an arithmetic number, because the mean of its divisors is an integer number (1218841).

Almost surely, 2^8438085 is an apocalyptic number.

It is an amenable number.

8438085 is a deficient number, since it is larger than the sum of its proper divisors (6188007).

8438085 is a wasteful number, since it uses less digits than its factorization.

8438085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187524 (or 187521 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8438085 is about 2904.8382054772. The cubic root of 8438085 is about 203.5860261264.

The spelling of 8438085 in words is "eight million, four hundred thirty-eight thousand, eighty-five".