1926730997 has 2 divisors, whose sum is σ = 1926730998. Its totient is φ = 1926730996.

The previous prime is 1926730991. The next prime is 1926731077. The reversal of 1926730997 is 7990376291.

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., 1688059396 + 238671601 = 41086^2 + 15449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1926730997 - 2¹⁴ = 1926714613 is a prime.

It is a super-2 number, since 2×1926730997² = 7424584669601228018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1926730991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 963365498 + 963365499.

It is an arithmetic number, because the mean of its divisors is an integer number (963365499).

Almost surely, 2^1926730997 is an apocalyptic number.

It is an amenable number.

1926730997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1926730997 is an equidigital number, since it uses as much as digits as its factorization.

1926730997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 1926730997 is about 43894.5440459290. The cubic root of 1926730997 is about 1244.3437231918.

The spelling of 1926730997 in words is "one billion, nine hundred twenty-six million, seven hundred thirty thousand, nine hundred ninety-seven".