8203945 has 8 divisors (see below), whose sum is σ = 10423944. Its totient is φ = 6177024.

The previous prime is 8203907. The next prime is 8203963. The reversal of 8203945 is 5493028.

8203945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1792921 + 6411024 = 1339^2 + 2532^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8203945 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48174 + ... + 48343.

It is an arithmetic number, because the mean of its divisors is an integer number (1302993).

Almost surely, 2^8203945 is an apocalyptic number.

8203945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8203945 is a deficient number, since it is larger than the sum of its proper divisors (2219999).

8203945 is a wasteful number, since it uses less digits than its factorization.

8203945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96539.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8203945 is about 2864.2529567062. The cubic root of 8203945 is about 201.6853005875.

The spelling of 8203945 in words is "eight million, two hundred three thousand, nine hundred forty-five".