8209930 has 16 divisors (see below), whose sum is σ = 15177960. Its totient is φ = 3195072.

The previous prime is 8209907. The next prime is 8209931. The reversal of 8209930 is 399028.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8025889 + 184041 = 2833^2 + 429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8209892 and 8209901.

It is not an unprimeable number, because it can be changed into a prime (8209931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10725 + ... + 11464.

Almost surely, 2^8209930 is an apocalyptic number.

8209930 is a deficient number, since it is larger than the sum of its proper divisors (6968030).

8209930 is a wasteful number, since it uses less digits than its factorization.

8209930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22233.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 8209930 is about 2865.2975412686. The cubic root of 8209930 is about 201.7343336283.

The spelling of 8209930 in words is "eight million, two hundred nine thousand, nine hundred thirty".