8390545 has 8 divisors (see below), whose sum is σ = 10088640. Its totient is φ = 6699120.

The previous prime is 8390539. The next prime is 8390549. The reversal of 8390545 is 5450938.

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

It is not a de Polignac number, because 8390545 - 2⁵ = 8390513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8390545.

It is not an unprimeable number, because it can be changed into a prime (8390549) 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 7 ways as a sum of consecutive naturals, for example, 1740 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (1261080).

Almost surely, 2^8390545 is an apocalyptic number.

It is an amenable number.

8390545 is a deficient number, since it is larger than the sum of its proper divisors (1698095).

8390545 is a wasteful number, since it uses less digits than its factorization.

8390545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 8390545 is about 2896.6437475119. The cubic root of 8390545 is about 203.2029726687.

The spelling of 8390545 in words is "eight million, three hundred ninety thousand, five hundred forty-five".