1984097069 has 2 divisors, whose sum is σ = 1984097070. Its totient is φ = 1984097068.

The previous prime is 1984097009. The next prime is 1984097083. The reversal of 1984097069 is 9607904891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231308100 + 752788969 = 35090^2 + 27437^2 .

It is a cyclic number.

It is not a de Polignac number, because 1984097069 - 2¹² = 1984092973 is a prime.

It is a super-2 number, since 2×1984097069² = 7873282358428781522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1984097069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1984097009) 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, 992048534 + 992048535.

It is an arithmetic number, because the mean of its divisors is an integer number (992048535).

Almost surely, 2^1984097069 is an apocalyptic number.

It is an amenable number.

1984097069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1984097069 is an equidigital number, since it uses as much as digits as its factorization.

1984097069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 1984097069 is about 44543.2045210041. The cubic root of 1984097069 is about 1256.5727532755.

The spelling of 1984097069 in words is "one billion, nine hundred eighty-four million, ninety-seven thousand, sixty-nine".