82098949 has 2 divisors, whose sum is σ = 82098950. Its totient is φ = 82098948.

The previous prime is 82098941. The next prime is 82098959. The reversal of 82098949 is 94989028.

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., 48748324 + 33350625 = 6982^2 + 5775^2 .

It is a cyclic number.

It is not a de Polignac number, because 82098949 - 2³ = 82098941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82098941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41049474 + 41049475.

It is an arithmetic number, because the mean of its divisors is an integer number (41049475).

Almost surely, 2^82098949 is an apocalyptic number.

It is an amenable number.

82098949 is a deficient number, since it is larger than the sum of its proper divisors (1).

82098949 is an equidigital number, since it uses as much as digits as its factorization.

82098949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 82098949 is about 9060.8470354598. The cubic root of 82098949 is about 434.6228271550.

The spelling of 82098949 in words is "eighty-two million, ninety-eight thousand, nine hundred forty-nine".