8369945 has 8 divisors (see below), whose sum is σ = 10289160. Its totient is φ = 6532480.

The previous prime is 8369941. The next prime is 8369947. The reversal of 8369945 is 5499638.

It can be written as a sum of positive squares in 4 ways, for example, as 1315609 + 7054336 = 1147^2 + 2656^2 .

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

It is not a de Polignac number, because 8369945 - 2² = 8369941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8369896 and 8369905.

It is not an unprimeable number, because it can be changed into a prime (8369941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20210 + ... + 20619.

It is an arithmetic number, because the mean of its divisors is an integer number (1286145).

Almost surely, 2^8369945 is an apocalyptic number.

It is an amenable number.

8369945 is a deficient number, since it is larger than the sum of its proper divisors (1919215).

8369945 is a wasteful number, since it uses less digits than its factorization.

8369945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40875.

The product of its digits is 233280, while the sum is 44.

The square root of 8369945 is about 2893.0857228917. The cubic root of 8369945 is about 203.0365388377.

The spelling of 8369945 in words is "eight million, three hundred sixty-nine thousand, nine hundred forty-five".