982090909 has 2 divisors, whose sum is σ = 982090910. Its totient is φ = 982090908.

The previous prime is 982090903. The next prime is 982090919. The reversal of 982090909 is 909090289.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697224025 + 284866884 = 26405^2 + 16878^2 .

It is a cyclic number.

It is not a de Polignac number, because 982090909 - 2⁵ = 982090877 is a prime.

982090909 is a modest number, since divided by 90909 gives 982 as remainder.

It is equal to p_49982464 and since 982090909 and 49982464 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (982090903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491045454 + 491045455.

It is an arithmetic number, because the mean of its divisors is an integer number (491045455).

Almost surely, 2^982090909 is an apocalyptic number.

It is an amenable number.

982090909 is a deficient number, since it is larger than the sum of its proper divisors (1).

982090909 is an equidigital number, since it uses as much as digits as its factorization.

982090909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 982090909 is about 31338.3297097979. The cubic root of 982090909 is about 993.9943068550.

The spelling of 982090909 in words is "nine hundred eighty-two million, ninety thousand, nine hundred nine".