8339945 has 16 divisors (see below), whose sum is σ = 10782720. Its totient is φ = 6169344.

The previous prime is 8339941. The next prime is 8339957. The reversal of 8339945 is 5499338.

It is a cyclic number.

It is not a de Polignac number, because 8339945 - 2² = 8339941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8339941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4184 + ... + 5846.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^8339945 is an apocalyptic number.

8339945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8339945 is a deficient number, since it is larger than the sum of its proper divisors (2442775).

8339945 is a wasteful number, since it uses less digits than its factorization.

8339945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744.

The product of its digits is 116640, while the sum is 41.

The square root of 8339945 is about 2887.8962931518. The cubic root of 8339945 is about 202.7936703348.

The spelling of 8339945 in words is "eight million, three hundred thirty-nine thousand, nine hundred forty-five".