8305949 has 4 divisors (see below), whose sum is σ = 8311740. Its totient is φ = 8300160.

The previous prime is 8305931. The next prime is 8305951. The reversal of 8305949 is 9495038.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6853924 + 1452025 = 2618^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8305949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8305849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037 + ... + 4205.

It is an arithmetic number, because the mean of its divisors is an integer number (2077935).

Almost surely, 2^8305949 is an apocalyptic number.

It is an amenable number.

8305949 is a deficient number, since it is larger than the sum of its proper divisors (5791).

8305949 is a wasteful number, since it uses less digits than its factorization.

8305949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 8305949 is about 2882.0043372625. The cubic root of 8305949 is about 202.5177467554.

The spelling of 8305949 in words is "eight million, three hundred five thousand, nine hundred forty-nine".