8445745 has 16 divisors (see below), whose sum is σ = 12636288. Its totient is φ = 5264640.

The previous prime is 8445739. The next prime is 8445751. The reversal of 8445745 is 5475448.

It is an interprime number because it is at equal distance from previous prime (8445739) and next prime (8445751).

It is not a de Polignac number, because 8445745 - 2³ = 8445737 is a prime.

It is an Ulam number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10584 + ... + 11353.

It is an arithmetic number, because the mean of its divisors is an integer number (789768).

Almost surely, 2^8445745 is an apocalyptic number.

It is an amenable number.

8445745 is a deficient number, since it is larger than the sum of its proper divisors (4190543).

8445745 is a wasteful number, since it uses less digits than its factorization.

8445745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21960.

The product of its digits is 89600, while the sum is 37.

The square root of 8445745 is about 2906.1563963421. The cubic root of 8445745 is about 203.6476118736.

The spelling of 8445745 in words is "eight million, four hundred forty-five thousand, seven hundred forty-five".