8140885 has 4 divisors (see below), whose sum is σ = 9769068. Its totient is φ = 6512704.

The previous prime is 8140849. The next prime is 8140897. The reversal of 8140885 is 5880418.

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 6507601 + 1633284 = 2551^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 8140885 - 2¹³ = 8132693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8140885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814084 + ... + 814093.

It is an arithmetic number, because the mean of its divisors is an integer number (2442267).

Almost surely, 2^8140885 is an apocalyptic number.

It is an amenable number.

8140885 is a deficient number, since it is larger than the sum of its proper divisors (1628183).

8140885 is a wasteful number, since it uses less digits than its factorization.

8140885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628182.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 8140885 is about 2853.2236154918. The cubic root of 8140885 is about 201.1672164438.

It can be divided in two parts, 8140 and 885, that added together give a square (9025 = 95²).

The spelling of 8140885 in words is "eight million, one hundred forty thousand, eight hundred eighty-five".