8913445 has 4 divisors (see below), whose sum is σ = 10696140. Its totient is φ = 7130752.

The previous prime is 8913433. The next prime is 8913473. The reversal of 8913445 is 5443198.

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 2163841 + 6749604 = 1471^2 + 2598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8913445 is a prime.

8913445 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8913445.

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, 891340 + ... + 891349.

It is an arithmetic number, because the mean of its divisors is an integer number (2674035).

Almost surely, 2^8913445 is an apocalyptic number.

It is an amenable number.

8913445 is a deficient number, since it is larger than the sum of its proper divisors (1782695).

8913445 is a wasteful number, since it uses less digits than its factorization.

8913445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782694.

The product of its digits is 17280, while the sum is 34.

The square root of 8913445 is about 2985.5393147637. The cubic root of 8913445 is about 207.3394122095.

The spelling of 8913445 in words is "eight million, nine hundred thirteen thousand, four hundred forty-five".