1997009059 has 2 divisors, whose sum is σ = 1997009060. Its totient is φ = 1997009058.

The previous prime is 1997009009. The next prime is 1997009093. The reversal of 1997009059 is 9509007991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1997009059 - 2¹³ = 1997000867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1997009009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998504529 + 998504530.

It is an arithmetic number, because the mean of its divisors is an integer number (998504530).

Almost surely, 2^1997009059 is an apocalyptic number.

1997009059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1997009059 is an equidigital number, since it uses as much as digits as its factorization.

1997009059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 1997009059 is about 44687.9073016403. The cubic root of 1997009059 is about 1259.2926782995.

The spelling of 1997009059 in words is "one billion, nine hundred ninety-seven million, nine thousand, fifty-nine".